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diff --git a/third_party/heimdal/lib/gssapi/gss_acquire_cred.3 b/third_party/heimdal/lib/gssapi/gss_acquire_cred.3 new file mode 100644 index 0000000..de58ecd --- /dev/null +++ b/third_party/heimdal/lib/gssapi/gss_acquire_cred.3 @@ -0,0 +1,688 @@ +.\" Copyright (c) 2003 - 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. +.\" +.\" $Id$ +.\" +.Dd October 26, 2005 +.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_ccache_name , +.Nm gss_krb5_compat_des3_mic , +.Nm gss_krb5_copy_ccache , +.Nm gss_krb5_import_cred +.Nm gsskrb5_extract_authz_data_from_sec_context , +.Nm gsskrb5_register_acceptor_identity , +.Nm gss_krb5_import_ccache , +.Nm gss_krb5_get_tkt_flags , +.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 +GSS-API library (libgssapi, -lgssapi) +.Sh SYNOPSIS +.In gssapi.h +.Pp +.Ft OM_uint32 +.Fo gss_accept_sec_context +.Fa "OM_uint32 * minor_status" +.Fa "gss_ctx_id_t * context_handle" +.Fa "gss_const_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 "gss_const_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 +.Ft OM_uint32 +.Fo gss_add_cred +.Fa "OM_uint32 *minor_status" +.Fa "gss_const_cred_id_t input_cred_handle" +.Fa "gss_const_name_t desired_name" +.Fa "const gss_OID desired_mech" +.Fa "gss_cred_usage_t cred_usage" +.Fa "OM_uint32 initiator_time_req" +.Fa "OM_uint32 acceptor_time_req" +.Fa "gss_cred_id_t *output_cred_handle" +.Fa "gss_OID_set *actual_mechs" +.Fa "OM_uint32 *initiator_time_rec" +.Fa "OM_uint32 *acceptor_time_rec" +.Fc +.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 "gss_const_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 "gss_const_name_t name1" +.Fa "gss_const_name_t name2" +.Fa "int * name_equal" +.Fc +.Ft OM_uint32 +.Fo gss_context_time +.Fa "OM_uint32 * minor_status" +.Fa "gss_const_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 "gss_const_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 "gss_const_name_t src_name" +.Fa "gss_name_t * dest_name" +.Fc +.Ft OM_uint32 +.Fo gss_export_name +.Fa "OM_uint32 * minor_status" +.Fa "gss_const_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 "gss_const_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 "gss_const_cred_id_t initiator_cred_handle" +.Fa "gss_ctx_id_t * context_handle" +.Fa "gss_const_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 "gss_const_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 "gss_const_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 +.Fa "OM_uint32 * minor_status" +.Fa "gss_const_cred_id_t cred_handle" +.Fa "const gss_OID mech_type" +.Fa "gss_name_t * name" +.Fa "OM_uint32 * initiator_lifetime" +.Fa "OM_uint32 * acceptor_lifetime" +.Fa "gss_cred_usage_t * cred_usage" +.Fc +.Ft OM_uint32 +.Fo gss_inquire_mechs_for_name +.Fa "OM_uint32 * minor_status" +.Fa "gss_const_name_t input_name" +.Fa "gss_OID_set * mech_types" +.Fc +.Ft OM_uint32 +.Fo gss_inquire_names_for_mech +.Fa "OM_uint32 * minor_status" +.Fa "const gss_OID mechanism" +.Fa "gss_OID_set * name_types" +.Fc +.Ft OM_uint32 +.Fo gss_krb5_ccache_name +.Fa "OM_uint32 *minor" +.Fa "const char *name" +.Fa "const char **old_name" +.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_krb5_import_cred +.Fa "OM_uint32 *minor_status" +.Fa "krb5_ccache id" +.Fa "krb5_principal keytab_principal" +.Fa "krb5_keytab keytab" +.Fa "gss_cred_id_t *cred" +.Fc +.Ft OM_uint32 +.Fo gss_krb5_compat_des3_mic +.Fa "OM_uint32 * minor_status" +.Fa "gss_ctx_id_t context_handle" +.Fa "int onoff" +.Fc +.Ft OM_uint32 +.Fo gsskrb5_extract_authz_data_from_sec_context +.Fa "OM_uint32 *minor_status" +.Fa "gss_ctx_id_t context_handle" +.Fa "int ad_type" +.Fa "gss_buffer_t ad_data" +.Fc +.Ft OM_uint32 +.Fo gsskrb5_register_acceptor_identity +.Fa "const char *identity" +.Fc +.Ft OM_uint32 +.Fo gss_krb5_import_cache +.Fa "OM_uint32 *minor" +.Fa "krb5_ccache id" +.Fa "krb5_keytab keytab" +.Fa "gss_cred_id_t *cred" +.Fc +.Ft OM_uint32 +.Fo gss_krb5_get_tkt_flags +.Fa "OM_uint32 *minor_status" +.Fa "gss_ctx_id_t context_handle" +.Fa "OM_uint32 *tkt_flags" +.Fc +.Ft OM_uint32 +.Fo gss_process_context_token +.Fa "OM_uint32 * minor_status" +.Fa "gss_const_ctx_id_t context_handle" +.Fa "const gss_buffer_t token_buffer" +.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 OM_uint32 +.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 "gss_const_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 "gss_const_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 OM_uint32 +.Fo gss_wrap +.Fa "OM_uint32 * minor_status" +.Fa "gss_const_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 "gss_const_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 +Generic Security Service API (GSS-API) version 2, and its C binding, +is described in +.Li RFC2743 +and +.Li RFC2744 . +Version 1 (deprecated) of the C binding is described in +.Li RFC1509 . +.Pp +Heimdals GSS-API implementation supports the following mechanisms +.Bl -bullet +.It +.Li GSS_KRB5_MECHANISM +.It +.Li GSS_SPNEGO_MECHANISM +.El +.Pp +GSS-API have generic name types that all mechanism are supposed to +implement (if possible): +.Bl -bullet +.It +.Li GSS_C_NT_USER_NAME +.It +.Li GSS_C_NT_MACHINE_UID_NAME +.It +.Li GSS_C_NT_STRING_UID_NAME +.It +.Li GSS_C_NT_HOSTBASED_SERVICE +.It +.Li GSS_C_NT_ANONYMOUS +.It +.Li GSS_C_NT_EXPORT_NAME +.El +.Pp +GSS-API implementations that supports Kerberos 5 have some additional +name types: +.Bl -bullet +.It +.Li GSS_KRB5_NT_PRINCIPAL_NAME +.It +.Li GSS_KRB5_NT_USER_NAME +.It +.Li GSS_KRB5_NT_MACHINE_UID_NAME +.It +.Li GSS_KRB5_NT_STRING_UID_NAME +.El +.Pp +In GSS-API, names have two forms, internal names and contiguous string +names. +.Bl -bullet +.It +.Li Internal name and mechanism name +.Pp +Internal names are implementation specific representation of +a GSS-API name. +.Li Mechanism names +special form of internal names corresponds to one and only one mechanism. +.Pp +In GSS-API an internal name is stored in a +.Dv gss_name_t . +.It +.Li Contiguous string name and exported name +.Pp +Contiguous string names are gssapi names stored in a +.Dv OCTET STRING +that together with a name type identifier (OID) uniquely specifies a +gss-name. +A special form of the contiguous string name is the exported name that +have a OID embedded in the string to make it unique. +Exported name have the nametype +.Dv GSS_C_NT_EXPORT_NAME . +.Pp +In GSS-API an contiguous string name is stored in a +.Dv gss_buffer_t . +.Pp +Exported names also have the property that they are specified by the +mechanism itself and compatible between different GSS-API +implementations. +.El +.Sh ACCESS CONTROL +There are two ways of comparing GSS-API names, either comparing two +internal names with each other or two contiguous string names with +either other. +.Pp +To compare two internal names with each other, import (if needed) the +names with +.Fn gss_import_name +into the GSS-API implementation and the compare the imported name with +.Fn gss_compare_name . +.Pp +Importing names can be slow, so when its possible to store exported +names in the access control list, comparing contiguous string name +might be better. +.Pp +when comparing contiguous string name, first export them into a +.Dv GSS_C_NT_EXPORT_NAME +name with +.Fn gss_export_name +and then compare with +.Xr memcmp 3 . +.Pp +Note that there are might be a difference between the two methods of +comparing names. +The first (using +.Fn gss_compare_name ) +will compare to (unauthenticated) names are the same. +The second will compare if a mechanism will authenticate them as the +same principal. +.Pp +For example, if +.Fn gss_import_name +name was used with +.Dv GSS_C_NO_OID +the default syntax is used for all mechanism the GSS-API +implementation supports. +When compare the imported name of +.Dv GSS_C_NO_OID +it may match several mechanism names (MN). +.Pp +The resulting name from +.Fn gss_display_name +must not be used for access control. +.Sh FUNCTIONS +.Fn gss_display_name +takes the gss name in +.Fa input_name +and puts 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 latter case contain the OID type of the name. +The name must only be used for printing. +If access control is needed, see section +.Sx ACCESS CONTROL . +.Pp +.Fn gss_inquire_context +returns information about the context. +Information is available even after the context have expired. +.Fa lifetime_rec +argument is set to +.Dv GSS_C_INDEFINITE +(don't expire) or the number of seconds that the context is still valid. +A value of 0 means that the context is expired. +.Fa mech_type +argument should be considered readonly and must not be released. +.Fa src_name +and +.Fn dest_name +are both mechanims names and must be released with +.Fn gss_release_name +when no longer used. +.Pp +.Nm gss_context_time +will return the amount of time (in seconds) of the context is still +valid. +If its expired +.Fa time_rec +will be set to 0 and +.Dv GSS_S_CONTEXT_EXPIRED +returned. +.Pp +.Fn gss_sign , +.Fn gss_verify , +.Fn gss_seal , +and +.Fn gss_unseal +are part of the GSS-API V1 interface and are obsolete. +The functions should not be used for new applications. +They are provided so that version 1 applications can link against the +library. +.Sh EXTENSIONS +.Fn gss_krb5_ccache_name +sets the internal kerberos 5 credential cache name to +.Fa name . +The old name is returned in +.Fa old_name , +and must not be freed. +The data allocated for +.Fa old_name +is free upon next call to +.Fn gss_krb5_ccache_name . +This function is not threadsafe if +.Fa old_name +argument is used. +.Pp +.Fn gss_krb5_copy_ccache +will extract the krb5 credentials that are transferred 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 . +.Pp +.Fn gss_krb5_import_cred +will import the krb5 credentials (both keytab and/or credential cache) +into gss credential so it can be used withing GSS-API. +The +.Fa ccache +is copied by reference and thus shared, so if the credential is destroyed +with +.Fa krb5_cc_destroy , +all users of thep +.Fa gss_cred_id_t +returned by +.Fn gss_krb5_import_ccache +will fail. +.Pp +.Fn gsskrb5_register_acceptor_identity +sets the Kerberos 5 filebased keytab that the acceptor will use. The +.Fa identifier +is the file name. +.Pp +.Fn gsskrb5_extract_authz_data_from_sec_context +extracts the Kerberos authorizationdata that may be stored within the +context. +Tha caller must free the returned buffer +.Fa ad_data +with +.Fn gss_release_buffer +upon success. +.Pp +.Fn gss_krb5_get_tkt_flags +return the ticket flags for the kerberos ticket receive when +authenticating the initiator. +Only valid on the acceptor context. +.Pp +.Fn gss_krb5_compat_des3_mic +turns on or off the compatibility with older version of Heimdal using +des3 get and verify mic, this is way to programmatically set the +[gssapi]broken_des3_mic and [gssapi]correct_des3_mic flags (see +COMPATIBILITY section in +.Xr gssapi 3 ) . +If the CPP symbol +.Dv GSS_C_KRB5_COMPAT_DES3_MIC +is present, +.Fn gss_krb5_compat_des3_mic +exists. +.Fn gss_krb5_compat_des3_mic +will be removed in a later version of the GSS-API library. +.Sh SEE ALSO +.Xr gssapi 3 , +.Xr krb5 3 , +.Xr krb5_ccache 3 , +.Xr kerberos 8 |