diff options
Diffstat (limited to 'crypto/heimdal/lib/gssapi/accept_sec_context.c')
| -rw-r--r-- | crypto/heimdal/lib/gssapi/accept_sec_context.c | 445 |
1 files changed, 0 insertions, 445 deletions
diff --git a/crypto/heimdal/lib/gssapi/accept_sec_context.c b/crypto/heimdal/lib/gssapi/accept_sec_context.c deleted file mode 100644 index d923c36..0000000 --- a/crypto/heimdal/lib/gssapi/accept_sec_context.c +++ /dev/null @@ -1,445 +0,0 @@ -/* - * Copyright (c) 1997 - 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 "gssapi_locl.h" - -RCSID("$Id: accept_sec_context.c,v 1.33.2.2 2003/12/19 00:37:06 lha Exp $"); - -krb5_keytab gssapi_krb5_keytab; - -OM_uint32 -gsskrb5_register_acceptor_identity (const char *identity) -{ - krb5_error_code ret; - char *p; - - ret = gssapi_krb5_init(); - if(ret) - return GSS_S_FAILURE; - - if(gssapi_krb5_keytab != NULL) { - krb5_kt_close(gssapi_krb5_context, gssapi_krb5_keytab); - gssapi_krb5_keytab = NULL; - } - asprintf(&p, "FILE:%s", identity); - if(p == NULL) - return GSS_S_FAILURE; - ret = krb5_kt_resolve(gssapi_krb5_context, p, &gssapi_krb5_keytab); - free(p); - if(ret) - return GSS_S_FAILURE; - return GSS_S_COMPLETE; -} - -OM_uint32 -gss_accept_sec_context - (OM_uint32 * minor_status, - gss_ctx_id_t * context_handle, - const gss_cred_id_t acceptor_cred_handle, - const gss_buffer_t input_token_buffer, - const gss_channel_bindings_t input_chan_bindings, - gss_name_t * src_name, - gss_OID * mech_type, - gss_buffer_t output_token, - OM_uint32 * ret_flags, - OM_uint32 * time_rec, - gss_cred_id_t * delegated_cred_handle - ) -{ - krb5_error_code kret; - OM_uint32 ret = GSS_S_COMPLETE; - krb5_data indata; - krb5_flags ap_options; - OM_uint32 flags; - krb5_ticket *ticket = NULL; - krb5_keytab keytab = NULL; - krb5_data fwd_data; - OM_uint32 minor; - - GSSAPI_KRB5_INIT(); - - krb5_data_zero (&fwd_data); - output_token->length = 0; - output_token->value = NULL; - - if (src_name != NULL) - *src_name = NULL; - if (mech_type) - *mech_type = GSS_KRB5_MECHANISM; - - if (*context_handle == GSS_C_NO_CONTEXT) { - *context_handle = malloc(sizeof(**context_handle)); - if (*context_handle == GSS_C_NO_CONTEXT) { - *minor_status = ENOMEM; - return GSS_S_FAILURE; - } - } - - (*context_handle)->auth_context = NULL; - (*context_handle)->source = NULL; - (*context_handle)->target = NULL; - (*context_handle)->flags = 0; - (*context_handle)->more_flags = 0; - (*context_handle)->ticket = NULL; - (*context_handle)->lifetime = GSS_C_INDEFINITE; - - kret = krb5_auth_con_init (gssapi_krb5_context, - &(*context_handle)->auth_context); - if (kret) { - ret = GSS_S_FAILURE; - *minor_status = kret; - gssapi_krb5_set_error_string (); - goto failure; - } - - if (input_chan_bindings != GSS_C_NO_CHANNEL_BINDINGS - && input_chan_bindings->application_data.length == - 2 * sizeof((*context_handle)->auth_context->local_port) - ) { - - /* Port numbers are expected to be in application_data.value, - * initator's port first */ - - krb5_address initiator_addr, acceptor_addr; - - memset(&initiator_addr, 0, sizeof(initiator_addr)); - memset(&acceptor_addr, 0, sizeof(acceptor_addr)); - - (*context_handle)->auth_context->remote_port = - *(int16_t *) input_chan_bindings->application_data.value; - - (*context_handle)->auth_context->local_port = - *((int16_t *) input_chan_bindings->application_data.value + 1); - - - kret = gss_address_to_krb5addr(input_chan_bindings->acceptor_addrtype, - &input_chan_bindings->acceptor_address, - (*context_handle)->auth_context->local_port, - &acceptor_addr); - if (kret) { - gssapi_krb5_set_error_string (); - ret = GSS_S_BAD_BINDINGS; - *minor_status = kret; - goto failure; - } - - kret = gss_address_to_krb5addr(input_chan_bindings->initiator_addrtype, - &input_chan_bindings->initiator_address, - (*context_handle)->auth_context->remote_port, - &initiator_addr); - if (kret) { - krb5_free_address (gssapi_krb5_context, &acceptor_addr); - gssapi_krb5_set_error_string (); - ret = GSS_S_BAD_BINDINGS; - *minor_status = kret; - goto failure; - } - - kret = krb5_auth_con_setaddrs(gssapi_krb5_context, - (*context_handle)->auth_context, - &acceptor_addr, /* local address */ - &initiator_addr); /* remote address */ - - krb5_free_address (gssapi_krb5_context, &initiator_addr); - krb5_free_address (gssapi_krb5_context, &acceptor_addr); - -#if 0 - free(input_chan_bindings->application_data.value); - input_chan_bindings->application_data.value = NULL; - input_chan_bindings->application_data.length = 0; -#endif - - if (kret) { - gssapi_krb5_set_error_string (); - ret = GSS_S_BAD_BINDINGS; - *minor_status = kret; - goto failure; - } - } - - - - { - int32_t tmp; - - krb5_auth_con_getflags(gssapi_krb5_context, - (*context_handle)->auth_context, - &tmp); - tmp |= KRB5_AUTH_CONTEXT_DO_SEQUENCE; - krb5_auth_con_setflags(gssapi_krb5_context, - (*context_handle)->auth_context, - tmp); - } - - ret = gssapi_krb5_decapsulate (minor_status, - input_token_buffer, - &indata, - "\x01\x00"); - if (ret) - goto failure; - - if (acceptor_cred_handle == GSS_C_NO_CREDENTIAL) { - if (gssapi_krb5_keytab != NULL) { - keytab = gssapi_krb5_keytab; - } - } else if (acceptor_cred_handle->keytab != NULL) { - keytab = acceptor_cred_handle->keytab; - } - - kret = krb5_rd_req (gssapi_krb5_context, - &(*context_handle)->auth_context, - &indata, - (acceptor_cred_handle == GSS_C_NO_CREDENTIAL) ? NULL - : acceptor_cred_handle->principal, - keytab, - &ap_options, - &ticket); - if (kret) { - ret = GSS_S_FAILURE; - *minor_status = kret; - gssapi_krb5_set_error_string (); - goto failure; - } - - kret = krb5_copy_principal (gssapi_krb5_context, - ticket->client, - &(*context_handle)->source); - if (kret) { - ret = GSS_S_FAILURE; - *minor_status = kret; - gssapi_krb5_set_error_string (); - goto failure; - } - - kret = krb5_copy_principal (gssapi_krb5_context, - ticket->server, - &(*context_handle)->target); - if (kret) { - ret = GSS_S_FAILURE; - *minor_status = kret; - gssapi_krb5_set_error_string (); - goto failure; - } - - ret = _gss_DES3_get_mic_compat(minor_status, *context_handle); - if (ret) - goto failure; - - if (src_name != NULL) { - kret = krb5_copy_principal (gssapi_krb5_context, - ticket->client, - src_name); - if (kret) { - ret = GSS_S_FAILURE; - *minor_status = kret; - gssapi_krb5_set_error_string (); - goto failure; - } - } - - { - krb5_authenticator authenticator; - - kret = krb5_auth_con_getauthenticator(gssapi_krb5_context, - (*context_handle)->auth_context, - &authenticator); - if(kret) { - ret = GSS_S_FAILURE; - *minor_status = kret; - gssapi_krb5_set_error_string (); - goto failure; - } - - ret = gssapi_krb5_verify_8003_checksum(minor_status, - input_chan_bindings, - authenticator->cksum, - &flags, - &fwd_data); - krb5_free_authenticator(gssapi_krb5_context, &authenticator); - if (ret) - goto failure; - } - - if (fwd_data.length > 0 && (flags & GSS_C_DELEG_FLAG)) { - krb5_ccache ccache; - int32_t ac_flags; - - if (delegated_cred_handle == NULL) - /* XXX Create a new delegated_cred_handle? */ - kret = krb5_cc_default (gssapi_krb5_context, &ccache); - else if (*delegated_cred_handle == NULL) { - if ((*delegated_cred_handle = - calloc(1, sizeof(**delegated_cred_handle))) == NULL) { - ret = GSS_S_FAILURE; - *minor_status = ENOMEM; - krb5_set_error_string(gssapi_krb5_context, "out of memory"); - gssapi_krb5_set_error_string(); - goto failure; - } - if ((ret = gss_duplicate_name(minor_status, ticket->client, - &(*delegated_cred_handle)->principal)) != 0) { - flags &= ~GSS_C_DELEG_FLAG; - free(*delegated_cred_handle); - *delegated_cred_handle = NULL; - goto end_fwd; - } - } - if (delegated_cred_handle != NULL && - (*delegated_cred_handle)->ccache == NULL) { - kret = krb5_cc_gen_new (gssapi_krb5_context, - &krb5_mcc_ops, - &(*delegated_cred_handle)->ccache); - ccache = (*delegated_cred_handle)->ccache; - } - if (delegated_cred_handle != NULL && - (*delegated_cred_handle)->mechanisms == NULL) { - ret = gss_create_empty_oid_set(minor_status, - &(*delegated_cred_handle)->mechanisms); - if (ret) - goto failure; - ret = gss_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM, - &(*delegated_cred_handle)->mechanisms); - if (ret) - goto failure; - } - - if (kret) { - flags &= ~GSS_C_DELEG_FLAG; - goto end_fwd; - } - - kret = krb5_cc_initialize(gssapi_krb5_context, - ccache, - *src_name); - if (kret) { - flags &= ~GSS_C_DELEG_FLAG; - goto end_fwd; - } - - krb5_auth_con_getflags(gssapi_krb5_context, - (*context_handle)->auth_context, - &ac_flags); - krb5_auth_con_setflags(gssapi_krb5_context, - (*context_handle)->auth_context, - ac_flags & ~KRB5_AUTH_CONTEXT_DO_TIME); - kret = krb5_rd_cred2(gssapi_krb5_context, - (*context_handle)->auth_context, - ccache, - &fwd_data); - krb5_auth_con_setflags(gssapi_krb5_context, - (*context_handle)->auth_context, - ac_flags); - if (kret) { - flags &= ~GSS_C_DELEG_FLAG; - goto end_fwd; - } - - end_fwd: - free(fwd_data.data); - } - - - flags |= GSS_C_TRANS_FLAG; - - if (ret_flags) - *ret_flags = flags; - (*context_handle)->lifetime = ticket->ticket.endtime; - (*context_handle)->flags = flags; - (*context_handle)->more_flags |= OPEN; - - if (mech_type) - *mech_type = GSS_KRB5_MECHANISM; - - if (time_rec) { - ret = gssapi_lifetime_left(minor_status, - (*context_handle)->lifetime, - time_rec); - if (ret) - goto failure; - } - - if(flags & GSS_C_MUTUAL_FLAG) { - krb5_data outbuf; - - kret = krb5_mk_rep (gssapi_krb5_context, - (*context_handle)->auth_context, - &outbuf); - if (kret) { - ret = GSS_S_FAILURE; - *minor_status = kret; - gssapi_krb5_set_error_string (); - goto failure; - } - ret = gssapi_krb5_encapsulate (minor_status, - &outbuf, - output_token, - "\x02\x00"); - krb5_data_free (&outbuf); - if (ret) - goto failure; - } else { - output_token->length = 0; - output_token->value = NULL; - } - - (*context_handle)->ticket = ticket; - ticket = NULL; - -#if 0 - krb5_free_ticket (context, ticket); -#endif - - *minor_status = 0; - return GSS_S_COMPLETE; - - failure: - if (fwd_data.length > 0) - free(fwd_data.data); - if (ticket != NULL) - krb5_free_ticket (gssapi_krb5_context, ticket); - krb5_auth_con_free (gssapi_krb5_context, - (*context_handle)->auth_context); - if((*context_handle)->source) - krb5_free_principal (gssapi_krb5_context, - (*context_handle)->source); - if((*context_handle)->target) - krb5_free_principal (gssapi_krb5_context, - (*context_handle)->target); - free (*context_handle); - if (src_name != NULL) { - gss_release_name (&minor, src_name); - *src_name = NULL; - } - *context_handle = GSS_C_NO_CONTEXT; - return ret; -} |
