heimdal/lib/gssapi/gss_acquire_cred.3

.\" Copyright (c) 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. 
.\" 
.\" $Id$
.\" 
.Dd March 10, 2003
.Dt GSS_ACQUIRE_CRED 3
.Os HEIMDAL
.Sh NAME
.Nm gss_accept_sec_context ,
.Nm gss_acquire_cred ,
.Nm gss_add_cred ,
.Nm gss_add_oid_set_member ,
.Nm gss_canonicalize_name ,
.Nm gss_compare_name ,
.Nm gss_context_time ,
.Nm gss_create_empty_oid_set ,
.Nm gss_delete_sec_context ,
.Nm gss_display_name ,
.Nm gss_display_status ,
.Nm gss_duplicate_name ,
.Nm gss_export_name ,
.Nm gss_export_sec_context ,
.Nm gss_get_mic ,
.Nm gss_import_name ,
.Nm gss_import_sec_context ,
.Nm gss_indicate_mechs ,
.Nm gss_init_sec_context ,
.Nm gss_inquire_context ,
.Nm gss_inquire_cred ,
.Nm gss_inquire_cred_by_mech ,
.Nm gss_inquire_mechs_for_name ,
.Nm gss_inquire_names_for_mech ,
.Nm gss_krb5_copy_ccache ,
.Nm gss_process_context_token ,
.Nm gss_release_buffer ,
.Nm gss_release_cred ,
.Nm gss_release_name ,
.Nm gss_release_oid_set ,
.Nm gss_seal ,
.Nm gss_sign ,
.Nm gss_test_oid_set_member ,
.Nm gss_unseal ,
.Nm gss_unwrap ,
.Nm gss_verify ,
.Nm gss_verify_mic ,
.Nm gss_wrap ,
.Nm gss_wrap_size_limit
.Nd Generic Security Service Application Program Interface library
.Sh LIBRARY
gssapi library (libgssapi, -lgssapi)
.Sh SYNOPSIS
.Fd #include <gssapi.h>
.Pp
.Ft OM_uint32
.Fo gss_accept_sec_context
.Fa "OM_uint32 * minor_status"
.Fa "gss_ctx_id_t * context_handle"
.Fa "const gss_cred_id_t acceptor_cred_handle"
.Fa "const gss_buffer_t input_token_buffer"
.Fa "const gss_channel_bindings_t input_chan_bindings"
.Fa "gss_name_t * src_name"
.Fa "gss_OID * mech_type"
.Fa "gss_buffer_t output_token"
.Fa "OM_uint32 * ret_flags"
.Fa "OM_uint32 * time_rec"
.Fa "gss_cred_id_t * delegated_cred_handle"
.Fc
.Pp
.Ft OM_uint32
.Fo gss_acquire_cred
.Fa "OM_uint32 * minor_status"
.Fa "const gss_name_t desired_name"
.Fa "OM_uint32 time_req"
.Fa "const gss_OID_set desired_mechs"
.Fa "gss_cred_usage_t cred_usage"
.Fa "gss_cred_id_t * output_cred_handle"
.Fa "gss_OID_set * actual_mechs"
.Fa "OM_uint32 * time_rec"
.Fc
.\" .Fn gss_add_cred
.Ft OM_uint32
.Fo gss_add_oid_set_member
.Fa "OM_uint32 * minor_status"
.Fa "const gss_OID member_oid"
.Fa "gss_OID_set * oid_set"
.Fc
.Ft OM_uint32
.Fo gss_canonicalize_name
.Fa "OM_uint32 * minor_status"
.Fa "const gss_name_t input_name"
.Fa "const gss_OID mech_type"
.Fa "gss_name_t * output_name"
.Fc
.Ft OM_uint32
.Fo gss_compare_name
.Fa "OM_uint32 * minor_status"
.Fa "const gss_name_t name1"
.Fa "const gss_name_t name2"
.Fa "int * name_equal"
.Fc
.Ft OM_uint32
.Fo gss_context_time
.Fa "OM_uint32 * minor_status"
.Fa "const gss_ctx_id_t context_handle"
.Fa "OM_uint32 * time_rec"
.Fc
.Ft OM_uint32
.Fo gss_create_empty_oid_set
.Fa "OM_uint32 * minor_status"
.Fa "gss_OID_set * oid_set"
.Fc
.Ft OM_uint32
.Fo gss_delete_sec_context
.Fa "OM_uint32 * minor_status"
.Fa "gss_ctx_id_t * context_handle"
.Fa "gss_buffer_t output_token"
.Fc
.Ft OM_uint32
.Fo gss_display_name
.Fa "OM_uint32 * minor_status"
.Fa "const gss_name_t input_name"
.Fa "gss_buffer_t output_name_buffer"
.Fa "gss_OID * output_name_type"
.Fc
.Ft OM_uint32
.Fo gss_display_status
.Fa "OM_uint32 *minor_status"
.Fa "OM_uint32 status_value"
.Fa "int status_type"
.Fa "const gss_OID mech_type"
.Fa "OM_uint32 *message_context"
.Fa "gss_buffer_t status_string"
.Fc
.Ft OM_uint32
.Fo gss_duplicate_name
.Fa "OM_uint32 * minor_status"
.Fa "const gss_name_t src_name"
.Fa "gss_name_t * dest_name"
.Fc
.Ft OM_uint32
.Fo gss_export_name
.Fa "OM_uint32  * minor_status"
.Fa "const gss_name_t input_name"
.Fa "gss_buffer_t exported_name"
.Fc
.Ft OM_uint32
.Fo gss_export_sec_context
.Fa "OM_uint32 * minor_status"
.Fa "gss_ctx_id_t * context_handle"
.Fa "gss_buffer_t interprocess_token"
.Fc
.Ft OM_uint32
.Fo gss_get_mic
.Fa "OM_uint32 * minor_status"
.Fa "const gss_ctx_id_t context_handle"
.Fa "gss_qop_t qop_req"
.Fa "const gss_buffer_t message_buffer"
.Fa "gss_buffer_t message_token"
.Fc
.Ft OM_uint32
.Fo gss_import_name
.Fa "OM_uint32 * minor_status,
.Fa "const gss_buffer_t input_name_buffer"
.Fa "const gss_OID input_name_type"
.Fa "gss_name_t * output_name"
.Fc
.Ft OM_uint32
.Fo gss_import_sec_context
.Fa "OM_uint32 * minor_status"
.Fa "const gss_buffer_t interprocess_token"
.Fa "gss_ctx_id_t * context_handle"
.Fc
.Ft OM_uint32
.Fo gss_indicate_mechs
.Fa "OM_uint32 * minor_status"
.Fa "gss_OID_set * mech_set"
.Fc
.Ft OM_uint32
.Fo gss_init_sec_context
.Fa "OM_uint32 * minor_status"
.Fa "const gss_cred_id_t initiator_cred_handle"
.Fa "gss_ctx_id_t * context_handle"
.Fa "const gss_name_t target_name"
.Fa "const gss_OID mech_type"
.Fa "OM_uint32 req_flags"
.Fa "OM_uint32 time_req"
.Fa "const gss_channel_bindings_t input_chan_bindings"
.Fa "const gss_buffer_t input_token"
.Fa "gss_OID * actual_mech_type"
.Fa "gss_buffer_t output_token"
.Fa "OM_uint32 * ret_flags"
.Fa "OM_uint32 * time_rec"
.Fc
.Ft OM_uint32
.Fo gss_inquire_context
.Fa "OM_uint32 * minor_status"
.Fa "const gss_ctx_id_t context_handle"
.Fa "gss_name_t * src_name"
.Fa "gss_name_t * targ_name"
.Fa "OM_uint32 * lifetime_rec"
.Fa "gss_OID * mech_type"
.Fa "OM_uint32 * ctx_flags"
.Fa "int * locally_initiated"
.Fa "int * open_context"
.Fc
.Ft OM_uint32
.Fo gss_inquire_cred
.Fa "OM_uint32 * minor_status"
.Fa "const gss_cred_id_t cred_handle"
.Fa "gss_name_t * name"
.Fa "OM_uint32 * lifetime"
.Fa "gss_cred_usage_t * cred_usage"
.Fa "gss_OID_set * mechanisms"
.Fc
.Ft OM_uint32
.Fo gss_inquire_cred_by_mech
.Fc
.Ft OM_uint32
.Fo gss_inquire_mechs_for_name
.Fc
.Ft OM_uint32
.Fo gss_inquire_names_for_mech
.Fc
.Ft OM_uint32
.Fo gss_krb5_copy_ccache
.Fa "OM_uint32 *minor"
.Fa "gss_cred_id_t cred"
.Fa "krb5_ccache out"
.Fc
.Ft OM_uint32
.Fo gss_process_context_token
.Fc
.Ft OM_uint32
.Fo gss_release_buffer
.Fa "OM_uint32 * minor_status"
.Fa "gss_buffer_t buffer"
.Fc
.Ft OM_uint32
.Fo gss_release_cred
.Fa "OM_uint32 * minor_status"
.Fa "gss_cred_id_t * cred_handle"
.Fc
.Ft OM_uint32
.Fo gss_release_name
.Fa "OM_uint32 * minor_status"
.Fa "gss_name_t * input_name"
.Fc
.Ft
.Fo gss_release_oid_set
.Fa "OM_uint32 * minor_status"
.Fa "gss_OID_set * set"
.Fc
.Ft OM_uint32
.Fo gss_seal
.Fa "OM_uint32 * minor_status"
.Fa "gss_ctx_id_t context_handle"
.Fa "int conf_req_flag"
.Fa "int qop_req"
.Fa "gss_buffer_t input_message_buffer"
.Fa "int * conf_state"
.Fa "gss_buffer_t output_message_buffer"
.Fc
.Ft OM_uint32
.Fo gss_sign
.Fa "OM_uint32 * minor_status"
.Fa "gss_ctx_id_t context_handle"
.Fa "int qop_req"
.Fa "gss_buffer_t message_buffer"
.Fa "gss_buffer_t message_token"
.Fc
.Ft OM_uint32
.Fo gss_test_oid_set_member
.Fa "OM_uint32 * minor_status"
.Fa "const gss_OID member"
.Fa "const gss_OID_set set"
.Fa "int * present"
.Fc
.Ft OM_uint32
.Fo gss_unseal
.Fa "OM_uint32 * minor_status"
.Fa "gss_ctx_id_t context_handle"
.Fa "gss_buffer_t input_message_buffer"
.Fa "gss_buffer_t output_message_buffer"
.Fa "int * conf_state"
.Fa "int * qop_state"
.Fc
.Ft OM_uint32
.Fo gss_unwrap
.Fa "OM_uint32 * minor_status"
.Fa "const gss_ctx_id_t context_handle"
.Fa "const gss_buffer_t input_message_buffer"
.Fa "gss_buffer_t output_message_buffer"
.Fa "int * conf_state"
.Fa "gss_qop_t * qop_state"
.Fc
.Ft OM_uint32
.Fo gss_verify
.Fa "OM_uint32 * minor_status"
.Fa "gss_ctx_id_t context_handle"
.Fa "gss_buffer_t message_buffer"
.Fa "gss_buffer_t token_buffer"
.Fa "int * qop_state"
.Fc
.Ft OM_uint32
.Fo gss_verify_mic
.Fa "OM_uint32 * minor_status"
.Fa "const gss_ctx_id_t context_handle"
.Fa "const gss_buffer_t message_buffer"
.Fa "const gss_buffer_t token_buffer"
.Fa "gss_qop_t * qop_state"
.Fc
.Ft
.Fo gss_wrap
.Fa "OM_uint32 * minor_status"
.Fa "const gss_ctx_id_t context_handle"
.Fa "int conf_req_flag"
.Fa "gss_qop_t qop_req"
.Fa "const gss_buffer_t input_message_buffer"
.Fa "int * conf_state"
.Fa "gss_buffer_t output_message_buffer"
.Fc
.Ft OM_uint32
.Fo gss_wrap_size_limit
.Fa "OM_uint32 * minor_status"
.Fa "const gss_ctx_id_t context_handle"
.Fa "int conf_req_flag"
.Fa "gss_qop_t qop_req"
.Fa "OM_uint32 req_output_size"
.Fa "OM_uint32 * max_input_size"
.Fc
.Sh DESCRIPTION
.Nm gssapi
uses standardized C API for
.Nm gssapi
described in
.Li RFC1509
and
.Li RFC2744 .
.Pp
.Fn gss_display_name
takes the gssapi name in
.Fa input_name
and put a printable form in
.Fa output_name_buffer .
.Fa output_name_buffer
should be freed when done using
.Fn gss_release_buffer .
.Fa output_name_type
can either be
.Dv NULL
or a pointer to a
.Li gss_OID
and will in the later case contain the OID type of the name.
The name should only be used for printing.
Access control should be done with the result of
.Fn gss_export_name .
.Pp
.Fn gss_krb5_copy_ccache
is an extension to the
.Nm gssapi
API.
The function will extract the krb5 credential that are transfered from
the initiator to the acceptor when using token delegation in the
Kerberos mechanism.
The acceptor receives the delegated token in the last argument to
.Fn gss_accept_sec_context .
.Sh SEE ALSO
.Xr krb5 3 ,
.Xr krb5_ccache 3 ,
.Xr gssapi 3 ,
.Xr kerberos 8