1200 lines
28 KiB
C
1200 lines
28 KiB
C
/*
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* Copyright (c) 2006 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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RCSID("$Id: digest.c 22156 2007-12-04 20:02:49Z lha $");
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#include "digest_asn1.h"
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struct krb5_digest_data {
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char *cbtype;
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char *cbbinding;
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DigestInit init;
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DigestInitReply initReply;
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DigestRequest request;
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DigestResponse response;
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};
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krb5_error_code
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krb5_digest_alloc(krb5_context context, krb5_digest *digest)
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{
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krb5_digest d;
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d = calloc(1, sizeof(*d));
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if (d == NULL) {
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*digest = NULL;
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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*digest = d;
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return 0;
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}
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void
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krb5_digest_free(krb5_digest digest)
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{
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if (digest == NULL)
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return;
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free_DigestInit(&digest->init);
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free_DigestInitReply(&digest->initReply);
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free_DigestRequest(&digest->request);
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free_DigestResponse(&digest->response);
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memset(digest, 0, sizeof(*digest));
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free(digest);
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return;
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}
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krb5_error_code
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krb5_digest_set_server_cb(krb5_context context,
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krb5_digest digest,
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const char *type,
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const char *binding)
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{
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if (digest->init.channel) {
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krb5_set_error_string(context, "server channel binding already set");
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return EINVAL;
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}
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digest->init.channel = calloc(1, sizeof(*digest->init.channel));
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if (digest->init.channel == NULL)
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goto error;
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digest->init.channel->cb_type = strdup(type);
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if (digest->init.channel->cb_type == NULL)
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goto error;
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digest->init.channel->cb_binding = strdup(binding);
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if (digest->init.channel->cb_binding == NULL)
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goto error;
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return 0;
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error:
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if (digest->init.channel) {
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free(digest->init.channel->cb_type);
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free(digest->init.channel->cb_binding);
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free(digest->init.channel);
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digest->init.channel = NULL;
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}
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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krb5_error_code
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krb5_digest_set_type(krb5_context context,
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krb5_digest digest,
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const char *type)
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{
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if (digest->init.type) {
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krb5_set_error_string(context, "client type already set");
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return EINVAL;
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}
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digest->init.type = strdup(type);
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if (digest->init.type == NULL) {
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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return 0;
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}
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krb5_error_code
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krb5_digest_set_hostname(krb5_context context,
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krb5_digest digest,
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const char *hostname)
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{
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if (digest->init.hostname) {
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krb5_set_error_string(context, "server hostname already set");
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return EINVAL;
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}
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digest->init.hostname = malloc(sizeof(*digest->init.hostname));
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if (digest->init.hostname == NULL) {
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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*digest->init.hostname = strdup(hostname);
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if (*digest->init.hostname == NULL) {
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krb5_set_error_string(context, "out of memory");
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free(digest->init.hostname);
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digest->init.hostname = NULL;
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return ENOMEM;
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}
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return 0;
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}
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const char *
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krb5_digest_get_server_nonce(krb5_context context,
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krb5_digest digest)
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{
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return digest->initReply.nonce;
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}
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krb5_error_code
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krb5_digest_set_server_nonce(krb5_context context,
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krb5_digest digest,
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const char *nonce)
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{
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if (digest->request.serverNonce) {
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krb5_set_error_string(context, "nonce already set");
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return EINVAL;
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}
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digest->request.serverNonce = strdup(nonce);
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if (digest->request.serverNonce == NULL) {
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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return 0;
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}
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const char *
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krb5_digest_get_opaque(krb5_context context,
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krb5_digest digest)
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{
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return digest->initReply.opaque;
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}
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krb5_error_code
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krb5_digest_set_opaque(krb5_context context,
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krb5_digest digest,
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const char *opaque)
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{
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if (digest->request.opaque) {
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krb5_set_error_string(context, "opaque already set");
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return EINVAL;
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}
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digest->request.opaque = strdup(opaque);
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if (digest->request.opaque == NULL) {
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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return 0;
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}
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const char *
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krb5_digest_get_identifier(krb5_context context,
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krb5_digest digest)
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{
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if (digest->initReply.identifier == NULL)
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return NULL;
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return *digest->initReply.identifier;
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}
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krb5_error_code
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krb5_digest_set_identifier(krb5_context context,
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krb5_digest digest,
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const char *id)
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{
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if (digest->request.identifier) {
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krb5_set_error_string(context, "identifier already set");
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return EINVAL;
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}
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digest->request.identifier = calloc(1, sizeof(*digest->request.identifier));
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if (digest->request.identifier == NULL) {
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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*digest->request.identifier = strdup(id);
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if (*digest->request.identifier == NULL) {
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krb5_set_error_string(context, "out of memory");
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free(digest->request.identifier);
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digest->request.identifier = NULL;
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return ENOMEM;
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}
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return 0;
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}
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static krb5_error_code
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digest_request(krb5_context context,
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krb5_realm realm,
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krb5_ccache ccache,
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krb5_key_usage usage,
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const DigestReqInner *ireq,
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DigestRepInner *irep)
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{
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DigestREQ req;
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DigestREP rep;
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krb5_error_code ret;
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krb5_data data, data2;
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size_t size;
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krb5_crypto crypto = NULL;
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krb5_auth_context ac = NULL;
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krb5_principal principal = NULL;
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krb5_ccache id = NULL;
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krb5_realm r = NULL;
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krb5_data_zero(&data);
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krb5_data_zero(&data2);
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memset(&req, 0, sizeof(req));
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memset(&rep, 0, sizeof(rep));
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if (ccache == NULL) {
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ret = krb5_cc_default(context, &id);
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if (ret)
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goto out;
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} else
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id = ccache;
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if (realm == NULL) {
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ret = krb5_get_default_realm(context, &r);
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if (ret)
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goto out;
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} else
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r = realm;
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/*
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*
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*/
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ret = krb5_make_principal(context, &principal,
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r, KRB5_DIGEST_NAME, r, NULL);
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if (ret)
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goto out;
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ASN1_MALLOC_ENCODE(DigestReqInner, data.data, data.length,
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ireq, &size, ret);
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if (ret) {
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krb5_set_error_string(context,
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"Failed to encode digest inner request");
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goto out;
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}
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if (size != data.length)
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krb5_abortx(context, "ASN.1 internal encoder error");
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ret = krb5_mk_req_exact(context, &ac,
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AP_OPTS_USE_SUBKEY|AP_OPTS_MUTUAL_REQUIRED,
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principal, NULL, id, &req.apReq);
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if (ret)
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goto out;
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{
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krb5_keyblock *key;
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ret = krb5_auth_con_getlocalsubkey(context, ac, &key);
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if (ret)
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goto out;
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if (key == NULL) {
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krb5_set_error_string(context, "Digest failed to get local subkey");
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ret = EINVAL;
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goto out;
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}
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ret = krb5_crypto_init(context, key, 0, &crypto);
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krb5_free_keyblock (context, key);
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if (ret)
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goto out;
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}
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ret = krb5_encrypt_EncryptedData(context, crypto, usage,
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data.data, data.length, 0,
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&req.innerReq);
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if (ret)
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goto out;
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krb5_data_free(&data);
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ASN1_MALLOC_ENCODE(DigestREQ, data.data, data.length,
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&req, &size, ret);
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if (ret) {
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krb5_set_error_string(context, "Failed to encode DigestREQest");
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goto out;
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}
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if (size != data.length)
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krb5_abortx(context, "ASN.1 internal encoder error");
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ret = krb5_sendto_kdc(context, &data, &r, &data2);
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if (ret)
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goto out;
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ret = decode_DigestREP(data2.data, data2.length, &rep, NULL);
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if (ret) {
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krb5_set_error_string(context, "Failed to parse digest response");
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goto out;
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}
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{
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krb5_ap_rep_enc_part *repl;
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ret = krb5_rd_rep(context, ac, &rep.apRep, &repl);
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if (ret)
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goto out;
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krb5_free_ap_rep_enc_part(context, repl);
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}
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{
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krb5_keyblock *key;
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ret = krb5_auth_con_getremotesubkey(context, ac, &key);
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if (ret)
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goto out;
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if (key == NULL) {
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ret = EINVAL;
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krb5_set_error_string(context,
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"Digest reply have no remote subkey");
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goto out;
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}
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krb5_crypto_destroy(context, crypto);
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ret = krb5_crypto_init(context, key, 0, &crypto);
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krb5_free_keyblock (context, key);
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if (ret)
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goto out;
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}
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krb5_data_free(&data);
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ret = krb5_decrypt_EncryptedData(context, crypto, usage,
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&rep.innerRep, &data);
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if (ret)
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goto out;
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ret = decode_DigestRepInner(data.data, data.length, irep, NULL);
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if (ret) {
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krb5_set_error_string(context, "Failed to decode digest inner reply");
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goto out;
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}
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out:
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if (ccache == NULL && id)
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krb5_cc_close(context, id);
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if (realm == NULL && r)
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free(r);
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if (crypto)
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krb5_crypto_destroy(context, crypto);
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if (ac)
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krb5_auth_con_free(context, ac);
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if (principal)
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krb5_free_principal(context, principal);
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krb5_data_free(&data);
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krb5_data_free(&data2);
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free_DigestREQ(&req);
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free_DigestREP(&rep);
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return ret;
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}
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krb5_error_code
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krb5_digest_init_request(krb5_context context,
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krb5_digest digest,
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krb5_realm realm,
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krb5_ccache ccache)
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{
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DigestReqInner ireq;
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DigestRepInner irep;
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krb5_error_code ret;
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memset(&ireq, 0, sizeof(ireq));
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memset(&irep, 0, sizeof(irep));
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if (digest->init.type == NULL) {
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krb5_set_error_string(context, "Type missing from init req");
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return EINVAL;
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}
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ireq.element = choice_DigestReqInner_init;
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ireq.u.init = digest->init;
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ret = digest_request(context, realm, ccache,
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KRB5_KU_DIGEST_ENCRYPT, &ireq, &irep);
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if (ret)
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goto out;
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if (irep.element == choice_DigestRepInner_error) {
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krb5_set_error_string(context, "Digest init error: %s",
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irep.u.error.reason);
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ret = irep.u.error.code;
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goto out;
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}
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if (irep.element != choice_DigestRepInner_initReply) {
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krb5_set_error_string(context, "digest reply not an initReply");
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ret = EINVAL;
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goto out;
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}
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ret = copy_DigestInitReply(&irep.u.initReply, &digest->initReply);
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if (ret) {
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krb5_set_error_string(context, "Failed to copy initReply");
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goto out;
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}
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out:
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free_DigestRepInner(&irep);
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return ret;
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}
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krb5_error_code
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krb5_digest_set_client_nonce(krb5_context context,
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krb5_digest digest,
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const char *nonce)
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{
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if (digest->request.clientNonce) {
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krb5_set_error_string(context, "clientNonce already set");
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return EINVAL;
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}
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digest->request.clientNonce =
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calloc(1, sizeof(*digest->request.clientNonce));
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if (digest->request.clientNonce == NULL) {
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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*digest->request.clientNonce = strdup(nonce);
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if (*digest->request.clientNonce == NULL) {
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krb5_set_error_string(context, "out of memory");
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free(digest->request.clientNonce);
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digest->request.clientNonce = NULL;
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return ENOMEM;
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}
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return 0;
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}
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krb5_error_code
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krb5_digest_set_digest(krb5_context context,
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krb5_digest digest,
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const char *dgst)
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{
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if (digest->request.digest) {
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krb5_set_error_string(context, "digest already set");
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return EINVAL;
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}
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digest->request.digest = strdup(dgst);
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if (digest->request.digest == NULL) {
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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return 0;
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}
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krb5_error_code
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krb5_digest_set_username(krb5_context context,
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krb5_digest digest,
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const char *username)
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{
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if (digest->request.username) {
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krb5_set_error_string(context, "username already set");
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return EINVAL;
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}
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digest->request.username = strdup(username);
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if (digest->request.username == NULL) {
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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return 0;
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}
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krb5_error_code
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krb5_digest_set_authid(krb5_context context,
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krb5_digest digest,
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const char *authid)
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{
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if (digest->request.authid) {
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krb5_set_error_string(context, "authid already set");
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return EINVAL;
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}
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digest->request.authid = malloc(sizeof(*digest->request.authid));
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|
if (digest->request.authid == NULL) {
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krb5_set_error_string(context, "out of memory");
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return ENOMEM;
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}
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*digest->request.authid = strdup(authid);
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if (*digest->request.authid == NULL) {
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|
krb5_set_error_string(context, "out of memory");
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free(digest->request.authid);
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digest->request.authid = NULL;
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return ENOMEM;
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}
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return 0;
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}
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|
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krb5_error_code
|
|
krb5_digest_set_authentication_user(krb5_context context,
|
|
krb5_digest digest,
|
|
krb5_principal authentication_user)
|
|
{
|
|
krb5_error_code ret;
|
|
|
|
if (digest->request.authentication_user) {
|
|
krb5_set_error_string(context, "authentication_user already set");
|
|
return EINVAL;
|
|
}
|
|
ret = krb5_copy_principal(context,
|
|
authentication_user,
|
|
&digest->request.authentication_user);
|
|
if (digest->request.authentication_user == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_digest_set_realm(krb5_context context,
|
|
krb5_digest digest,
|
|
const char *realm)
|
|
{
|
|
if (digest->request.realm) {
|
|
krb5_set_error_string(context, "realm already set");
|
|
return EINVAL;
|
|
}
|
|
digest->request.realm = malloc(sizeof(*digest->request.realm));
|
|
if (digest->request.realm == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
*digest->request.realm = strdup(realm);
|
|
if (*digest->request.realm == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
free(digest->request.realm);
|
|
digest->request.realm = NULL;
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_digest_set_method(krb5_context context,
|
|
krb5_digest digest,
|
|
const char *method)
|
|
{
|
|
if (digest->request.method) {
|
|
krb5_set_error_string(context, "method already set");
|
|
return EINVAL;
|
|
}
|
|
digest->request.method = malloc(sizeof(*digest->request.method));
|
|
if (digest->request.method == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
*digest->request.method = strdup(method);
|
|
if (*digest->request.method == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
free(digest->request.method);
|
|
digest->request.method = NULL;
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_digest_set_uri(krb5_context context,
|
|
krb5_digest digest,
|
|
const char *uri)
|
|
{
|
|
if (digest->request.uri) {
|
|
krb5_set_error_string(context, "uri already set");
|
|
return EINVAL;
|
|
}
|
|
digest->request.uri = malloc(sizeof(*digest->request.uri));
|
|
if (digest->request.uri == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
*digest->request.uri = strdup(uri);
|
|
if (*digest->request.uri == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
free(digest->request.uri);
|
|
digest->request.uri = NULL;
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_digest_set_nonceCount(krb5_context context,
|
|
krb5_digest digest,
|
|
const char *nonce_count)
|
|
{
|
|
if (digest->request.nonceCount) {
|
|
krb5_set_error_string(context, "nonceCount already set");
|
|
return EINVAL;
|
|
}
|
|
digest->request.nonceCount =
|
|
malloc(sizeof(*digest->request.nonceCount));
|
|
if (digest->request.nonceCount == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
*digest->request.nonceCount = strdup(nonce_count);
|
|
if (*digest->request.nonceCount == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
free(digest->request.nonceCount);
|
|
digest->request.nonceCount = NULL;
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_digest_set_qop(krb5_context context,
|
|
krb5_digest digest,
|
|
const char *qop)
|
|
{
|
|
if (digest->request.qop) {
|
|
krb5_set_error_string(context, "qop already set");
|
|
return EINVAL;
|
|
}
|
|
digest->request.qop = malloc(sizeof(*digest->request.qop));
|
|
if (digest->request.qop == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
*digest->request.qop = strdup(qop);
|
|
if (*digest->request.qop == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
free(digest->request.qop);
|
|
digest->request.qop = NULL;
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
krb5_digest_set_responseData(krb5_context context,
|
|
krb5_digest digest,
|
|
const char *response)
|
|
{
|
|
digest->request.responseData = strdup(response);
|
|
if (digest->request.responseData == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_digest_request(krb5_context context,
|
|
krb5_digest digest,
|
|
krb5_realm realm,
|
|
krb5_ccache ccache)
|
|
{
|
|
DigestReqInner ireq;
|
|
DigestRepInner irep;
|
|
krb5_error_code ret;
|
|
|
|
memset(&ireq, 0, sizeof(ireq));
|
|
memset(&irep, 0, sizeof(irep));
|
|
|
|
ireq.element = choice_DigestReqInner_digestRequest;
|
|
ireq.u.digestRequest = digest->request;
|
|
|
|
if (digest->request.type == NULL) {
|
|
if (digest->init.type == NULL) {
|
|
krb5_set_error_string(context, "Type missing from req");
|
|
return EINVAL;
|
|
}
|
|
ireq.u.digestRequest.type = digest->init.type;
|
|
}
|
|
|
|
if (ireq.u.digestRequest.digest == NULL)
|
|
ireq.u.digestRequest.digest = "md5";
|
|
|
|
ret = digest_request(context, realm, ccache,
|
|
KRB5_KU_DIGEST_ENCRYPT, &ireq, &irep);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (irep.element == choice_DigestRepInner_error) {
|
|
krb5_set_error_string(context, "Digest response error: %s",
|
|
irep.u.error.reason);
|
|
ret = irep.u.error.code;
|
|
goto out;
|
|
}
|
|
|
|
if (irep.element != choice_DigestRepInner_response) {
|
|
krb5_set_error_string(context, "digest reply not an DigestResponse");
|
|
ret = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
ret = copy_DigestResponse(&irep.u.response, &digest->response);
|
|
if (ret) {
|
|
krb5_set_error_string(context, "Failed to copy initReply");
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
free_DigestRepInner(&irep);
|
|
|
|
return ret;
|
|
}
|
|
|
|
krb5_boolean
|
|
krb5_digest_rep_get_status(krb5_context context,
|
|
krb5_digest digest)
|
|
{
|
|
return digest->response.success ? TRUE : FALSE;
|
|
}
|
|
|
|
const char *
|
|
krb5_digest_get_rsp(krb5_context context,
|
|
krb5_digest digest)
|
|
{
|
|
if (digest->response.rsp == NULL)
|
|
return NULL;
|
|
return *digest->response.rsp;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_digest_get_tickets(krb5_context context,
|
|
krb5_digest digest,
|
|
Ticket **tickets)
|
|
{
|
|
*tickets = NULL;
|
|
return 0;
|
|
}
|
|
|
|
|
|
krb5_error_code
|
|
krb5_digest_get_client_binding(krb5_context context,
|
|
krb5_digest digest,
|
|
char **type,
|
|
char **binding)
|
|
{
|
|
if (digest->response.channel) {
|
|
*type = strdup(digest->response.channel->cb_type);
|
|
*binding = strdup(digest->response.channel->cb_binding);
|
|
if (*type == NULL || *binding == NULL) {
|
|
free(*type);
|
|
free(*binding);
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
} else {
|
|
*type = NULL;
|
|
*binding = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_digest_get_session_key(krb5_context context,
|
|
krb5_digest digest,
|
|
krb5_data *data)
|
|
{
|
|
krb5_error_code ret;
|
|
|
|
krb5_data_zero(data);
|
|
if (digest->response.session_key == NULL)
|
|
return 0;
|
|
ret = der_copy_octet_string(digest->response.session_key, data);
|
|
if (ret)
|
|
krb5_clear_error_string(context);
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct krb5_ntlm_data {
|
|
NTLMInit init;
|
|
NTLMInitReply initReply;
|
|
NTLMRequest request;
|
|
NTLMResponse response;
|
|
};
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_alloc(krb5_context context,
|
|
krb5_ntlm *ntlm)
|
|
{
|
|
*ntlm = calloc(1, sizeof(**ntlm));
|
|
if (*ntlm == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_free(krb5_context context, krb5_ntlm ntlm)
|
|
{
|
|
free_NTLMInit(&ntlm->init);
|
|
free_NTLMInitReply(&ntlm->initReply);
|
|
free_NTLMRequest(&ntlm->request);
|
|
free_NTLMResponse(&ntlm->response);
|
|
memset(ntlm, 0, sizeof(*ntlm));
|
|
free(ntlm);
|
|
return 0;
|
|
}
|
|
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_init_request(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
krb5_realm realm,
|
|
krb5_ccache ccache,
|
|
uint32_t flags,
|
|
const char *hostname,
|
|
const char *domainname)
|
|
{
|
|
DigestReqInner ireq;
|
|
DigestRepInner irep;
|
|
krb5_error_code ret;
|
|
|
|
memset(&ireq, 0, sizeof(ireq));
|
|
memset(&irep, 0, sizeof(irep));
|
|
|
|
ntlm->init.flags = flags;
|
|
if (hostname) {
|
|
ALLOC(ntlm->init.hostname, 1);
|
|
*ntlm->init.hostname = strdup(hostname);
|
|
}
|
|
if (domainname) {
|
|
ALLOC(ntlm->init.domain, 1);
|
|
*ntlm->init.domain = strdup(domainname);
|
|
}
|
|
|
|
ireq.element = choice_DigestReqInner_ntlmInit;
|
|
ireq.u.ntlmInit = ntlm->init;
|
|
|
|
ret = digest_request(context, realm, ccache,
|
|
KRB5_KU_DIGEST_ENCRYPT, &ireq, &irep);
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (irep.element == choice_DigestRepInner_error) {
|
|
krb5_set_error_string(context, "Digest init error: %s",
|
|
irep.u.error.reason);
|
|
ret = irep.u.error.code;
|
|
goto out;
|
|
}
|
|
|
|
if (irep.element != choice_DigestRepInner_ntlmInitReply) {
|
|
krb5_set_error_string(context, "ntlm reply not an initReply");
|
|
ret = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
ret = copy_NTLMInitReply(&irep.u.ntlmInitReply, &ntlm->initReply);
|
|
if (ret) {
|
|
krb5_set_error_string(context, "Failed to copy initReply");
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
free_DigestRepInner(&irep);
|
|
|
|
return ret;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_init_get_flags(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
uint32_t *flags)
|
|
{
|
|
*flags = ntlm->initReply.flags;
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_init_get_challange(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
krb5_data *challange)
|
|
{
|
|
krb5_error_code ret;
|
|
|
|
ret = der_copy_octet_string(&ntlm->initReply.challange, challange);
|
|
if (ret)
|
|
krb5_clear_error_string(context);
|
|
|
|
return ret;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_init_get_opaque(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
krb5_data *opaque)
|
|
{
|
|
krb5_error_code ret;
|
|
|
|
ret = der_copy_octet_string(&ntlm->initReply.opaque, opaque);
|
|
if (ret)
|
|
krb5_clear_error_string(context);
|
|
|
|
return ret;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_init_get_targetname(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
char **name)
|
|
{
|
|
*name = strdup(ntlm->initReply.targetname);
|
|
if (*name == NULL) {
|
|
krb5_clear_error_string(context);
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_init_get_targetinfo(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
krb5_data *data)
|
|
{
|
|
krb5_error_code ret;
|
|
|
|
if (ntlm->initReply.targetinfo == NULL) {
|
|
krb5_data_zero(data);
|
|
return 0;
|
|
}
|
|
|
|
ret = krb5_data_copy(data,
|
|
ntlm->initReply.targetinfo->data,
|
|
ntlm->initReply.targetinfo->length);
|
|
if (ret) {
|
|
krb5_clear_error_string(context);
|
|
return ret;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_request(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
krb5_realm realm,
|
|
krb5_ccache ccache)
|
|
{
|
|
DigestReqInner ireq;
|
|
DigestRepInner irep;
|
|
krb5_error_code ret;
|
|
|
|
memset(&ireq, 0, sizeof(ireq));
|
|
memset(&irep, 0, sizeof(irep));
|
|
|
|
ireq.element = choice_DigestReqInner_ntlmRequest;
|
|
ireq.u.ntlmRequest = ntlm->request;
|
|
|
|
ret = digest_request(context, realm, ccache,
|
|
KRB5_KU_DIGEST_ENCRYPT, &ireq, &irep);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (irep.element == choice_DigestRepInner_error) {
|
|
krb5_set_error_string(context, "NTLM response error: %s",
|
|
irep.u.error.reason);
|
|
ret = irep.u.error.code;
|
|
goto out;
|
|
}
|
|
|
|
if (irep.element != choice_DigestRepInner_ntlmResponse) {
|
|
krb5_set_error_string(context, "NTLM reply not an NTLMResponse");
|
|
ret = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
ret = copy_NTLMResponse(&irep.u.ntlmResponse, &ntlm->response);
|
|
if (ret) {
|
|
krb5_set_error_string(context, "Failed to copy NTLMResponse");
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
free_DigestRepInner(&irep);
|
|
|
|
return ret;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_req_set_flags(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
uint32_t flags)
|
|
{
|
|
ntlm->request.flags = flags;
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_req_set_username(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
const char *username)
|
|
{
|
|
ntlm->request.username = strdup(username);
|
|
if (ntlm->request.username == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_req_set_targetname(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
const char *targetname)
|
|
{
|
|
ntlm->request.targetname = strdup(targetname);
|
|
if (ntlm->request.targetname == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_req_set_lm(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
void *hash, size_t len)
|
|
{
|
|
ntlm->request.lm.data = malloc(len);
|
|
if (ntlm->request.lm.data == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
ntlm->request.lm.length = len;
|
|
memcpy(ntlm->request.lm.data, hash, len);
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_req_set_ntlm(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
void *hash, size_t len)
|
|
{
|
|
ntlm->request.ntlm.data = malloc(len);
|
|
if (ntlm->request.ntlm.data == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
ntlm->request.ntlm.length = len;
|
|
memcpy(ntlm->request.ntlm.data, hash, len);
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_req_set_opaque(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
krb5_data *opaque)
|
|
{
|
|
ntlm->request.opaque.data = malloc(opaque->length);
|
|
if (ntlm->request.opaque.data == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
ntlm->request.opaque.length = opaque->length;
|
|
memcpy(ntlm->request.opaque.data, opaque->data, opaque->length);
|
|
return 0;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_req_set_session(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
void *sessionkey, size_t length)
|
|
{
|
|
ntlm->request.sessionkey = calloc(1, sizeof(*ntlm->request.sessionkey));
|
|
if (ntlm->request.sessionkey == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
ntlm->request.sessionkey->data = malloc(length);
|
|
if (ntlm->request.sessionkey->data == NULL) {
|
|
krb5_set_error_string(context, "out of memory");
|
|
return ENOMEM;
|
|
}
|
|
memcpy(ntlm->request.sessionkey->data, sessionkey, length);
|
|
ntlm->request.sessionkey->length = length;
|
|
return 0;
|
|
}
|
|
|
|
krb5_boolean
|
|
krb5_ntlm_rep_get_status(krb5_context context,
|
|
krb5_ntlm ntlm)
|
|
{
|
|
return ntlm->response.success ? TRUE : FALSE;
|
|
}
|
|
|
|
krb5_error_code
|
|
krb5_ntlm_rep_get_sessionkey(krb5_context context,
|
|
krb5_ntlm ntlm,
|
|
krb5_data *data)
|
|
{
|
|
if (ntlm->response.sessionkey == NULL) {
|
|
krb5_set_error_string(context, "no ntlm session key");
|
|
return EINVAL;
|
|
}
|
|
krb5_clear_error_string(context);
|
|
return krb5_data_copy(data,
|
|
ntlm->response.sessionkey->data,
|
|
ntlm->response.sessionkey->length);
|
|
}
|
|
|
|
/**
|
|
* Get the supported/allowed mechanism for this principal.
|
|
*
|
|
* @param context A Keberos context.
|
|
* @param realm The realm of the KDC.
|
|
* @param ccache The credential cache to use when talking to the KDC.
|
|
* @param flags The supported mechanism.
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_digest
|
|
*/
|
|
|
|
krb5_error_code
|
|
krb5_digest_probe(krb5_context context,
|
|
krb5_realm realm,
|
|
krb5_ccache ccache,
|
|
unsigned *flags)
|
|
{
|
|
DigestReqInner ireq;
|
|
DigestRepInner irep;
|
|
krb5_error_code ret;
|
|
|
|
memset(&ireq, 0, sizeof(ireq));
|
|
memset(&irep, 0, sizeof(irep));
|
|
|
|
ireq.element = choice_DigestReqInner_supportedMechs;
|
|
|
|
ret = digest_request(context, realm, ccache,
|
|
KRB5_KU_DIGEST_ENCRYPT, &ireq, &irep);
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (irep.element == choice_DigestRepInner_error) {
|
|
krb5_set_error_string(context, "Digest probe error: %s",
|
|
irep.u.error.reason);
|
|
ret = irep.u.error.code;
|
|
goto out;
|
|
}
|
|
|
|
if (irep.element != choice_DigestRepInner_supportedMechs) {
|
|
krb5_set_error_string(context, "Digest reply not an probe");
|
|
ret = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
*flags = DigestTypes2int(irep.u.supportedMechs);
|
|
|
|
out:
|
|
free_DigestRepInner(&irep);
|
|
|
|
return ret;
|
|
}
|