diff options
Diffstat (limited to 'crypto/heimdal/lib/gssapi/krb5/export_sec_context.c')
| -rw-r--r-- | crypto/heimdal/lib/gssapi/krb5/export_sec_context.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/gssapi/krb5/export_sec_context.c b/crypto/heimdal/lib/gssapi/krb5/export_sec_context.c new file mode 100644 index 0000000..0021861 --- /dev/null +++ b/crypto/heimdal/lib/gssapi/krb5/export_sec_context.c @@ -0,0 +1,240 @@ +/* + * Copyright (c) 1999 - 2003 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 "krb5/gsskrb5_locl.h" + +RCSID("$Id: export_sec_context.c 19031 2006-11-13 18:02:57Z lha $"); + +OM_uint32 +_gsskrb5_export_sec_context ( + OM_uint32 * minor_status, + gss_ctx_id_t * context_handle, + gss_buffer_t interprocess_token + ) +{ + krb5_context context; + const gsskrb5_ctx ctx = (const gsskrb5_ctx) *context_handle; + krb5_storage *sp; + krb5_auth_context ac; + OM_uint32 ret = GSS_S_COMPLETE; + krb5_data data; + gss_buffer_desc buffer; + int flags; + OM_uint32 minor; + krb5_error_code kret; + + GSSAPI_KRB5_INIT (&context); + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + + if (!(ctx->flags & GSS_C_TRANS_FLAG)) { + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + *minor_status = 0; + return GSS_S_UNAVAILABLE; + } + + sp = krb5_storage_emem (); + if (sp == NULL) { + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + ac = ctx->auth_context; + + /* flagging included fields */ + + flags = 0; + if (ac->local_address) + flags |= SC_LOCAL_ADDRESS; + if (ac->remote_address) + flags |= SC_REMOTE_ADDRESS; + if (ac->keyblock) + flags |= SC_KEYBLOCK; + if (ac->local_subkey) + flags |= SC_LOCAL_SUBKEY; + if (ac->remote_subkey) + flags |= SC_REMOTE_SUBKEY; + + kret = krb5_store_int32 (sp, flags); + if (kret) { + *minor_status = kret; + goto failure; + } + + /* marshall auth context */ + + kret = krb5_store_int32 (sp, ac->flags); + if (kret) { + *minor_status = kret; + goto failure; + } + if (ac->local_address) { + kret = krb5_store_address (sp, *ac->local_address); + if (kret) { + *minor_status = kret; + goto failure; + } + } + if (ac->remote_address) { + kret = krb5_store_address (sp, *ac->remote_address); + if (kret) { + *minor_status = kret; + goto failure; + } + } + kret = krb5_store_int16 (sp, ac->local_port); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int16 (sp, ac->remote_port); + if (kret) { + *minor_status = kret; + goto failure; + } + if (ac->keyblock) { + kret = krb5_store_keyblock (sp, *ac->keyblock); + if (kret) { + *minor_status = kret; + goto failure; + } + } + if (ac->local_subkey) { + kret = krb5_store_keyblock (sp, *ac->local_subkey); + if (kret) { + *minor_status = kret; + goto failure; + } + } + if (ac->remote_subkey) { + kret = krb5_store_keyblock (sp, *ac->remote_subkey); + if (kret) { + *minor_status = kret; + goto failure; + } + } + kret = krb5_store_int32 (sp, ac->local_seqnumber); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int32 (sp, ac->remote_seqnumber); + if (kret) { + *minor_status = kret; + goto failure; + } + + kret = krb5_store_int32 (sp, ac->keytype); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int32 (sp, ac->cksumtype); + if (kret) { + *minor_status = kret; + goto failure; + } + + /* names */ + + ret = _gsskrb5_export_name (minor_status, + (gss_name_t)ctx->source, &buffer); + if (ret) + goto failure; + data.data = buffer.value; + data.length = buffer.length; + kret = krb5_store_data (sp, data); + _gsskrb5_release_buffer (&minor, &buffer); + if (kret) { + *minor_status = kret; + goto failure; + } + + ret = _gsskrb5_export_name (minor_status, + (gss_name_t)ctx->target, &buffer); + if (ret) + goto failure; + data.data = buffer.value; + data.length = buffer.length; + + ret = GSS_S_FAILURE; + + kret = krb5_store_data (sp, data); + _gsskrb5_release_buffer (&minor, &buffer); + if (kret) { + *minor_status = kret; + goto failure; + } + + kret = krb5_store_int32 (sp, ctx->flags); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int32 (sp, ctx->more_flags); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int32 (sp, ctx->lifetime); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = _gssapi_msg_order_export(sp, ctx->order); + if (kret ) { + *minor_status = kret; + goto failure; + } + + kret = krb5_storage_to_data (sp, &data); + krb5_storage_free (sp); + if (kret) { + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + *minor_status = kret; + return GSS_S_FAILURE; + } + interprocess_token->length = data.length; + interprocess_token->value = data.data; + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + ret = _gsskrb5_delete_sec_context (minor_status, context_handle, + GSS_C_NO_BUFFER); + if (ret != GSS_S_COMPLETE) + _gsskrb5_release_buffer (NULL, interprocess_token); + *minor_status = 0; + return ret; + failure: + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + krb5_storage_free (sp); + return ret; +} |
