diff options
Diffstat (limited to 'crypto/heimdal/lib/gssapi/krb5/import_sec_context.c')
| -rw-r--r-- | crypto/heimdal/lib/gssapi/krb5/import_sec_context.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/gssapi/krb5/import_sec_context.c b/crypto/heimdal/lib/gssapi/krb5/import_sec_context.c new file mode 100644 index 0000000..3300036 --- /dev/null +++ b/crypto/heimdal/lib/gssapi/krb5/import_sec_context.c @@ -0,0 +1,229 @@ +/* + * 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: import_sec_context.c 19031 2006-11-13 18:02:57Z lha $"); + +OM_uint32 +_gsskrb5_import_sec_context ( + OM_uint32 * minor_status, + const gss_buffer_t interprocess_token, + gss_ctx_id_t * context_handle + ) +{ + OM_uint32 ret = GSS_S_FAILURE; + krb5_context context; + krb5_error_code kret; + krb5_storage *sp; + krb5_auth_context ac; + krb5_address local, remote; + krb5_address *localp, *remotep; + krb5_data data; + gss_buffer_desc buffer; + krb5_keyblock keyblock; + int32_t tmp; + int32_t flags; + gsskrb5_ctx ctx; + gss_name_t name; + + GSSAPI_KRB5_INIT (&context); + + *context_handle = GSS_C_NO_CONTEXT; + + localp = remotep = NULL; + + sp = krb5_storage_from_mem (interprocess_token->value, + interprocess_token->length); + if (sp == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + ctx = calloc(1, sizeof(*ctx)); + if (ctx == NULL) { + *minor_status = ENOMEM; + krb5_storage_free (sp); + return GSS_S_FAILURE; + } + HEIMDAL_MUTEX_init(&ctx->ctx_id_mutex); + + kret = krb5_auth_con_init (context, + &ctx->auth_context); + if (kret) { + *minor_status = kret; + ret = GSS_S_FAILURE; + goto failure; + } + + /* flags */ + + *minor_status = 0; + + if (krb5_ret_int32 (sp, &flags) != 0) + goto failure; + + /* retrieve the auth context */ + + ac = ctx->auth_context; + if (krb5_ret_uint32 (sp, &ac->flags) != 0) + goto failure; + if (flags & SC_LOCAL_ADDRESS) { + if (krb5_ret_address (sp, localp = &local) != 0) + goto failure; + } + + if (flags & SC_REMOTE_ADDRESS) { + if (krb5_ret_address (sp, remotep = &remote) != 0) + goto failure; + } + + krb5_auth_con_setaddrs (context, ac, localp, remotep); + if (localp) + krb5_free_address (context, localp); + if (remotep) + krb5_free_address (context, remotep); + localp = remotep = NULL; + + if (krb5_ret_int16 (sp, &ac->local_port) != 0) + goto failure; + + if (krb5_ret_int16 (sp, &ac->remote_port) != 0) + goto failure; + if (flags & SC_KEYBLOCK) { + if (krb5_ret_keyblock (sp, &keyblock) != 0) + goto failure; + krb5_auth_con_setkey (context, ac, &keyblock); + krb5_free_keyblock_contents (context, &keyblock); + } + if (flags & SC_LOCAL_SUBKEY) { + if (krb5_ret_keyblock (sp, &keyblock) != 0) + goto failure; + krb5_auth_con_setlocalsubkey (context, ac, &keyblock); + krb5_free_keyblock_contents (context, &keyblock); + } + if (flags & SC_REMOTE_SUBKEY) { + if (krb5_ret_keyblock (sp, &keyblock) != 0) + goto failure; + krb5_auth_con_setremotesubkey (context, ac, &keyblock); + krb5_free_keyblock_contents (context, &keyblock); + } + if (krb5_ret_uint32 (sp, &ac->local_seqnumber)) + goto failure; + if (krb5_ret_uint32 (sp, &ac->remote_seqnumber)) + goto failure; + + if (krb5_ret_int32 (sp, &tmp) != 0) + goto failure; + ac->keytype = tmp; + if (krb5_ret_int32 (sp, &tmp) != 0) + goto failure; + ac->cksumtype = tmp; + + /* names */ + + if (krb5_ret_data (sp, &data)) + goto failure; + buffer.value = data.data; + buffer.length = data.length; + + ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME, + &name); + if (ret) { + ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NO_OID, + &name); + if (ret) { + krb5_data_free (&data); + goto failure; + } + } + ctx->source = (krb5_principal)name; + krb5_data_free (&data); + + if (krb5_ret_data (sp, &data) != 0) + goto failure; + buffer.value = data.data; + buffer.length = data.length; + + ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME, + &name); + if (ret) { + ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NO_OID, + &name); + if (ret) { + krb5_data_free (&data); + goto failure; + } + } + ctx->target = (krb5_principal)name; + krb5_data_free (&data); + + if (krb5_ret_int32 (sp, &tmp)) + goto failure; + ctx->flags = tmp; + if (krb5_ret_int32 (sp, &tmp)) + goto failure; + ctx->more_flags = tmp; + if (krb5_ret_int32 (sp, &tmp)) + goto failure; + ctx->lifetime = tmp; + + ret = _gssapi_msg_order_import(minor_status, sp, &ctx->order); + if (ret) + goto failure; + + krb5_storage_free (sp); + + *context_handle = (gss_ctx_id_t)ctx; + + return GSS_S_COMPLETE; + +failure: + krb5_auth_con_free (context, + ctx->auth_context); + if (ctx->source != NULL) + krb5_free_principal(context, ctx->source); + if (ctx->target != NULL) + krb5_free_principal(context, ctx->target); + if (localp) + krb5_free_address (context, localp); + if (remotep) + krb5_free_address (context, remotep); + if(ctx->order) + _gssapi_msg_order_destroy(&ctx->order); + HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex); + krb5_storage_free (sp); + free (ctx); + *context_handle = GSS_C_NO_CONTEXT; + return ret; +} |
