1264377Sdes/* $OpenBSD: ssh-gss.h,v 1.11 2014/02/26 20:28:44 djm Exp $ */ 2294666Sdes/* $FreeBSD$ */ 3124208Sdes/* 4124208Sdes * Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved. 5124208Sdes * 6124208Sdes * Redistribution and use in source and binary forms, with or without 7124208Sdes * modification, are permitted provided that the following conditions 8124208Sdes * are met: 9124208Sdes * 1. Redistributions of source code must retain the above copyright 10124208Sdes * notice, this list of conditions and the following disclaimer. 11124208Sdes * 2. Redistributions in binary form must reproduce the above copyright 12124208Sdes * notice, this list of conditions and the following disclaimer in the 13124208Sdes * documentation and/or other materials provided with the distribution. 14124208Sdes * 15124208Sdes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR 16124208Sdes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17124208Sdes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18124208Sdes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19124208Sdes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20124208Sdes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21124208Sdes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22124208Sdes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23124208Sdes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24124208Sdes * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25124208Sdes */ 26124208Sdes 27124208Sdes#ifndef _SSH_GSS_H 28124208Sdes#define _SSH_GSS_H 29124208Sdes 30124208Sdes#ifdef GSSAPI 31124208Sdes 32255829Sdes#if defined(HAVE_GSSAPI_GSSAPI_H) 33255829Sdes#include <gssapi/gssapi.h> 34255829Sdes#elif defined(HAVE_GSSAPI_H) 35124208Sdes#include <gssapi.h> 36126274Sdes#endif 37124208Sdes 38124208Sdes#ifdef KRB5 39126274Sdes# ifndef HEIMDAL 40126274Sdes# ifdef HAVE_GSSAPI_GENERIC_H 41126274Sdes# include <gssapi_generic.h> 42126274Sdes# elif defined(HAVE_GSSAPI_GSSAPI_GENERIC_H) 43126274Sdes# include <gssapi/gssapi_generic.h> 44126274Sdes# endif 45124208Sdes 46248619Sdes/* Old MIT Kerberos doesn't seem to define GSS_NT_HOSTBASED_SERVICE */ 47124208Sdes 48248619Sdes# if !HAVE_DECL_GSS_C_NT_HOSTBASED_SERVICE 49248619Sdes# define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name 50248619Sdes# endif /* !HAVE_DECL_GSS_C_NT_... */ 51248619Sdes 52248619Sdes# endif /* !HEIMDAL */ 53124208Sdes#endif /* KRB5 */ 54124208Sdes 55124208Sdes/* draft-ietf-secsh-gsskeyex-06 */ 56124208Sdes#define SSH2_MSG_USERAUTH_GSSAPI_RESPONSE 60 57124208Sdes#define SSH2_MSG_USERAUTH_GSSAPI_TOKEN 61 58124208Sdes#define SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE 63 59124208Sdes#define SSH2_MSG_USERAUTH_GSSAPI_ERROR 64 60124208Sdes#define SSH2_MSG_USERAUTH_GSSAPI_ERRTOK 65 61126274Sdes#define SSH2_MSG_USERAUTH_GSSAPI_MIC 66 62124208Sdes 63124208Sdes#define SSH_GSS_OIDTYPE 0x06 64124208Sdes 65124208Sdestypedef struct { 66124208Sdes char *filename; 67124208Sdes char *envvar; 68124208Sdes char *envval; 69124208Sdes void *data; 70124208Sdes} ssh_gssapi_ccache; 71124208Sdes 72124208Sdestypedef struct { 73124208Sdes gss_buffer_desc displayname; 74124208Sdes gss_buffer_desc exportedname; 75124208Sdes gss_cred_id_t creds; 76124208Sdes struct ssh_gssapi_mech_struct *mech; 77124208Sdes ssh_gssapi_ccache store; 78124208Sdes} ssh_gssapi_client; 79124208Sdes 80124208Sdestypedef struct ssh_gssapi_mech_struct { 81124208Sdes char *enc_name; 82124208Sdes char *name; 83124208Sdes gss_OID_desc oid; 84124208Sdes int (*dochild) (ssh_gssapi_client *); 85124208Sdes int (*userok) (ssh_gssapi_client *, char *); 86124208Sdes int (*localname) (ssh_gssapi_client *, char **); 87124208Sdes void (*storecreds) (ssh_gssapi_client *); 88124208Sdes} ssh_gssapi_mech; 89124208Sdes 90124208Sdestypedef struct { 91124208Sdes OM_uint32 major; /* both */ 92124208Sdes OM_uint32 minor; /* both */ 93124208Sdes gss_ctx_id_t context; /* both */ 94124208Sdes gss_name_t name; /* both */ 95124208Sdes gss_OID oid; /* client */ 96124208Sdes gss_cred_id_t creds; /* server */ 97124208Sdes gss_name_t client; /* server */ 98124208Sdes gss_cred_id_t client_creds; /* server */ 99124208Sdes} Gssctxt; 100124208Sdes 101124208Sdesextern ssh_gssapi_mech *supported_mechs[]; 102124208Sdes 103137015Sdesint ssh_gssapi_check_oid(Gssctxt *, void *, size_t); 104137015Sdesvoid ssh_gssapi_set_oid_data(Gssctxt *, void *, size_t); 105137015Sdesvoid ssh_gssapi_set_oid(Gssctxt *, gss_OID); 106137015Sdesvoid ssh_gssapi_supported_oids(gss_OID_set *); 107137015Sdesssh_gssapi_mech *ssh_gssapi_get_ctype(Gssctxt *); 108264377Sdesvoid ssh_gssapi_prepare_supported_oids(void); 109264377SdesOM_uint32 ssh_gssapi_test_oid_supported(OM_uint32 *, gss_OID, int *); 110124208Sdes 111137015SdesOM_uint32 ssh_gssapi_import_name(Gssctxt *, const char *); 112137015SdesOM_uint32 ssh_gssapi_init_ctx(Gssctxt *, int, 113137015Sdes gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *); 114137015SdesOM_uint32 ssh_gssapi_accept_ctx(Gssctxt *, 115137015Sdes gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *); 116137015SdesOM_uint32 ssh_gssapi_getclient(Gssctxt *, ssh_gssapi_client *); 117137015Sdesvoid ssh_gssapi_error(Gssctxt *); 118137015Sdeschar *ssh_gssapi_last_error(Gssctxt *, OM_uint32 *, OM_uint32 *); 119137015Sdesvoid ssh_gssapi_build_ctx(Gssctxt **); 120137015Sdesvoid ssh_gssapi_delete_ctx(Gssctxt **); 121126274SdesOM_uint32 ssh_gssapi_sign(Gssctxt *, gss_buffer_t, gss_buffer_t); 122126274Sdesvoid ssh_gssapi_buildmic(Buffer *, const char *, const char *, const char *); 123162852Sdesint ssh_gssapi_check_mechanism(Gssctxt **, gss_OID, const char *); 124124208Sdes 125124208Sdes/* In the server */ 126181111SdesOM_uint32 ssh_gssapi_server_ctx(Gssctxt **, gss_OID); 127124208Sdesint ssh_gssapi_userok(char *name); 128126274SdesOM_uint32 ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t); 129137015Sdesvoid ssh_gssapi_do_child(char ***, u_int *); 130126274Sdesvoid ssh_gssapi_cleanup_creds(void); 131124208Sdesvoid ssh_gssapi_storecreds(void); 132124208Sdes 133124208Sdes#endif /* GSSAPI */ 134124208Sdes 135124208Sdes#endif /* _SSH_GSS_H */ 136