diff options
Diffstat (limited to 'crypto/heimdal/lib/gssapi/ntlm/digest.c')
-rw-r--r-- | crypto/heimdal/lib/gssapi/ntlm/digest.c | 435 |
1 files changed, 0 insertions, 435 deletions
diff --git a/crypto/heimdal/lib/gssapi/ntlm/digest.c b/crypto/heimdal/lib/gssapi/ntlm/digest.c deleted file mode 100644 index fecf4a5..0000000 --- a/crypto/heimdal/lib/gssapi/ntlm/digest.c +++ /dev/null @@ -1,435 +0,0 @@ -/* - * Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include "ntlm/ntlm.h" - -RCSID("$Id: digest.c 22169 2007-12-04 22:19:16Z lha $"); - -/* - * - */ - -struct ntlmkrb5 { - krb5_context context; - krb5_ntlm ntlm; - krb5_realm kerberos_realm; - krb5_ccache id; - krb5_data opaque; - int destroy; - OM_uint32 flags; - struct ntlm_buf key; - krb5_data sessionkey; -}; - -static OM_uint32 kdc_destroy(OM_uint32 *, void *); - -/* - * Get credential cache that the ntlm code can use to talk to the KDC - * using the digest API. - */ - -static krb5_error_code -get_ccache(krb5_context context, int *destroy, krb5_ccache *id) -{ - krb5_principal principal = NULL; - krb5_error_code ret; - krb5_keytab kt = NULL; - - *id = NULL; - - if (!issuid()) { - const char *cache; - - cache = getenv("NTLM_ACCEPTOR_CCACHE"); - if (cache) { - ret = krb5_cc_resolve(context, cache, id); - if (ret) - goto out; - return 0; - } - } - - ret = krb5_sname_to_principal(context, NULL, "host", - KRB5_NT_SRV_HST, &principal); - if (ret) - goto out; - - ret = krb5_cc_cache_match(context, principal, NULL, id); - if (ret == 0) - return 0; - - /* did not find in default credcache, lets try default keytab */ - ret = krb5_kt_default(context, &kt); - if (ret) - goto out; - - /* XXX check in keytab */ - { - krb5_get_init_creds_opt *opt; - krb5_creds cred; - - memset(&cred, 0, sizeof(cred)); - - ret = krb5_cc_new_unique(context, "MEMORY", NULL, id); - if (ret) - goto out; - *destroy = 1; - ret = krb5_get_init_creds_opt_alloc(context, &opt); - if (ret) - goto out; - ret = krb5_get_init_creds_keytab (context, - &cred, - principal, - kt, - 0, - NULL, - opt); - krb5_get_init_creds_opt_free(context, opt); - if (ret) - goto out; - ret = krb5_cc_initialize (context, *id, cred.client); - if (ret) { - krb5_free_cred_contents (context, &cred); - goto out; - } - ret = krb5_cc_store_cred (context, *id, &cred); - krb5_free_cred_contents (context, &cred); - if (ret) - goto out; - } - - krb5_kt_close(context, kt); - - return 0; - -out: - if (*destroy) - krb5_cc_destroy(context, *id); - else - krb5_cc_close(context, *id); - - *id = NULL; - - if (kt) - krb5_kt_close(context, kt); - - if (principal) - krb5_free_principal(context, principal); - return ret; -} - -/* - * - */ - -static OM_uint32 -kdc_alloc(OM_uint32 *minor, void **ctx) -{ - krb5_error_code ret; - struct ntlmkrb5 *c; - OM_uint32 junk; - - c = calloc(1, sizeof(*c)); - if (c == NULL) { - *minor = ENOMEM; - return GSS_S_FAILURE; - } - - ret = krb5_init_context(&c->context); - if (ret) { - kdc_destroy(&junk, c); - *minor = ret; - return GSS_S_FAILURE; - } - - ret = get_ccache(c->context, &c->destroy, &c->id); - if (ret) { - kdc_destroy(&junk, c); - *minor = ret; - return GSS_S_FAILURE; - } - - ret = krb5_ntlm_alloc(c->context, &c->ntlm); - if (ret) { - kdc_destroy(&junk, c); - *minor = ret; - return GSS_S_FAILURE; - } - - *ctx = c; - - return GSS_S_COMPLETE; -} - -static int -kdc_probe(OM_uint32 *minor, void *ctx, const char *realm) -{ - struct ntlmkrb5 *c = ctx; - krb5_error_code ret; - unsigned flags; - - ret = krb5_digest_probe(c->context, rk_UNCONST(realm), c->id, &flags); - if (ret) - return ret; - - if ((flags & (1|2|4)) == 0) - return EINVAL; - - return 0; -} - -/* - * - */ - -static OM_uint32 -kdc_destroy(OM_uint32 *minor, void *ctx) -{ - struct ntlmkrb5 *c = ctx; - krb5_data_free(&c->opaque); - krb5_data_free(&c->sessionkey); - if (c->ntlm) - krb5_ntlm_free(c->context, c->ntlm); - if (c->id) { - if (c->destroy) - krb5_cc_destroy(c->context, c->id); - else - krb5_cc_close(c->context, c->id); - } - if (c->context) - krb5_free_context(c->context); - memset(c, 0, sizeof(*c)); - free(c); - - return GSS_S_COMPLETE; -} - -/* - * - */ - -static OM_uint32 -kdc_type2(OM_uint32 *minor_status, - void *ctx, - uint32_t flags, - const char *hostname, - const char *domain, - uint32_t *ret_flags, - struct ntlm_buf *out) -{ - struct ntlmkrb5 *c = ctx; - krb5_error_code ret; - struct ntlm_type2 type2; - krb5_data challange; - struct ntlm_buf data; - krb5_data ti; - - memset(&type2, 0, sizeof(type2)); - - /* - * Request data for type 2 packet from the KDC. - */ - ret = krb5_ntlm_init_request(c->context, - c->ntlm, - NULL, - c->id, - flags, - hostname, - domain); - if (ret) { - *minor_status = ret; - return GSS_S_FAILURE; - } - - /* - * - */ - - ret = krb5_ntlm_init_get_opaque(c->context, c->ntlm, &c->opaque); - if (ret) { - *minor_status = ret; - return GSS_S_FAILURE; - } - - /* - * - */ - - ret = krb5_ntlm_init_get_flags(c->context, c->ntlm, &type2.flags); - if (ret) { - *minor_status = ret; - return GSS_S_FAILURE; - } - *ret_flags = type2.flags; - - ret = krb5_ntlm_init_get_challange(c->context, c->ntlm, &challange); - if (ret) { - *minor_status = ret; - return GSS_S_FAILURE; - } - - if (challange.length != sizeof(type2.challange)) { - *minor_status = EINVAL; - return GSS_S_FAILURE; - } - memcpy(type2.challange, challange.data, sizeof(type2.challange)); - krb5_data_free(&challange); - - ret = krb5_ntlm_init_get_targetname(c->context, c->ntlm, - &type2.targetname); - if (ret) { - *minor_status = ret; - return GSS_S_FAILURE; - } - - ret = krb5_ntlm_init_get_targetinfo(c->context, c->ntlm, &ti); - if (ret) { - free(type2.targetname); - *minor_status = ret; - return GSS_S_FAILURE; - } - - type2.targetinfo.data = ti.data; - type2.targetinfo.length = ti.length; - - ret = heim_ntlm_encode_type2(&type2, &data); - free(type2.targetname); - krb5_data_free(&ti); - if (ret) { - *minor_status = ret; - return GSS_S_FAILURE; - } - - out->data = data.data; - out->length = data.length; - - return GSS_S_COMPLETE; -} - -/* - * - */ - -static OM_uint32 -kdc_type3(OM_uint32 *minor_status, - void *ctx, - const struct ntlm_type3 *type3, - struct ntlm_buf *sessionkey) -{ - struct ntlmkrb5 *c = ctx; - krb5_error_code ret; - - sessionkey->data = NULL; - sessionkey->length = 0; - - ret = krb5_ntlm_req_set_flags(c->context, c->ntlm, type3->flags); - if (ret) goto out; - ret = krb5_ntlm_req_set_username(c->context, c->ntlm, type3->username); - if (ret) goto out; - ret = krb5_ntlm_req_set_targetname(c->context, c->ntlm, - type3->targetname); - if (ret) goto out; - ret = krb5_ntlm_req_set_lm(c->context, c->ntlm, - type3->lm.data, type3->lm.length); - if (ret) goto out; - ret = krb5_ntlm_req_set_ntlm(c->context, c->ntlm, - type3->ntlm.data, type3->ntlm.length); - if (ret) goto out; - ret = krb5_ntlm_req_set_opaque(c->context, c->ntlm, &c->opaque); - if (ret) goto out; - - if (type3->sessionkey.length) { - ret = krb5_ntlm_req_set_session(c->context, c->ntlm, - type3->sessionkey.data, - type3->sessionkey.length); - if (ret) goto out; - } - - /* - * Verify with the KDC the type3 packet is ok - */ - ret = krb5_ntlm_request(c->context, - c->ntlm, - NULL, - c->id); - if (ret) - goto out; - - if (krb5_ntlm_rep_get_status(c->context, c->ntlm) != TRUE) { - ret = EINVAL; - goto out; - } - - if (type3->sessionkey.length) { - ret = krb5_ntlm_rep_get_sessionkey(c->context, - c->ntlm, - &c->sessionkey); - if (ret) - goto out; - - sessionkey->data = c->sessionkey.data; - sessionkey->length = c->sessionkey.length; - } - - return 0; - - out: - *minor_status = ret; - return GSS_S_FAILURE; -} - -/* - * - */ - -static void -kdc_free_buffer(struct ntlm_buf *sessionkey) -{ - if (sessionkey->data) - free(sessionkey->data); - sessionkey->data = NULL; - sessionkey->length = 0; -} - -/* - * - */ - -struct ntlm_server_interface ntlmsspi_kdc_digest = { - kdc_alloc, - kdc_destroy, - kdc_probe, - kdc_type2, - kdc_type3, - kdc_free_buffer -}; |