1d74d50a8SDag-Erling Smørgrav /* $OpenBSD: ssh-gss.h,v 1.5 2004/06/21 17:36:31 avsm Exp $ */ 2d95e11bfSDag-Erling Smørgrav /* 3d95e11bfSDag-Erling Smørgrav * Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved. 4d95e11bfSDag-Erling Smørgrav * 5d95e11bfSDag-Erling Smørgrav * Redistribution and use in source and binary forms, with or without 6d95e11bfSDag-Erling Smørgrav * modification, are permitted provided that the following conditions 7d95e11bfSDag-Erling Smørgrav * are met: 8d95e11bfSDag-Erling Smørgrav * 1. Redistributions of source code must retain the above copyright 9d95e11bfSDag-Erling Smørgrav * notice, this list of conditions and the following disclaimer. 10d95e11bfSDag-Erling Smørgrav * 2. Redistributions in binary form must reproduce the above copyright 11d95e11bfSDag-Erling Smørgrav * notice, this list of conditions and the following disclaimer in the 12d95e11bfSDag-Erling Smørgrav * documentation and/or other materials provided with the distribution. 13d95e11bfSDag-Erling Smørgrav * 14d95e11bfSDag-Erling Smørgrav * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR 15d95e11bfSDag-Erling Smørgrav * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16d95e11bfSDag-Erling Smørgrav * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17d95e11bfSDag-Erling Smørgrav * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18d95e11bfSDag-Erling Smørgrav * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19d95e11bfSDag-Erling Smørgrav * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20d95e11bfSDag-Erling Smørgrav * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21d95e11bfSDag-Erling Smørgrav * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22d95e11bfSDag-Erling Smørgrav * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23d95e11bfSDag-Erling Smørgrav * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24d95e11bfSDag-Erling Smørgrav */ 25d95e11bfSDag-Erling Smørgrav 26d95e11bfSDag-Erling Smørgrav #ifndef _SSH_GSS_H 27d95e11bfSDag-Erling Smørgrav #define _SSH_GSS_H 28d95e11bfSDag-Erling Smørgrav 29d95e11bfSDag-Erling Smørgrav #ifdef GSSAPI 30d95e11bfSDag-Erling Smørgrav 31d95e11bfSDag-Erling Smørgrav #include "buffer.h" 32d95e11bfSDag-Erling Smørgrav 33efcad6b7SDag-Erling Smørgrav #ifdef HAVE_GSSAPI_H 34d95e11bfSDag-Erling Smørgrav #include <gssapi.h> 35efcad6b7SDag-Erling Smørgrav #elif defined(HAVE_GSSAPI_GSSAPI_H) 36efcad6b7SDag-Erling Smørgrav #include <gssapi/gssapi.h> 37efcad6b7SDag-Erling Smørgrav #endif 38d95e11bfSDag-Erling Smørgrav 39d95e11bfSDag-Erling Smørgrav #ifdef KRB5 40d95e11bfSDag-Erling Smørgrav # ifndef HEIMDAL 41efcad6b7SDag-Erling Smørgrav # ifdef HAVE_GSSAPI_GENERIC_H 42d95e11bfSDag-Erling Smørgrav # include <gssapi_generic.h> 43efcad6b7SDag-Erling Smørgrav # elif defined(HAVE_GSSAPI_GSSAPI_GENERIC_H) 44efcad6b7SDag-Erling Smørgrav # include <gssapi/gssapi_generic.h> 45efcad6b7SDag-Erling Smørgrav # endif 46d95e11bfSDag-Erling Smørgrav 47d95e11bfSDag-Erling Smørgrav /* MIT Kerberos doesn't seem to define GSS_NT_HOSTBASED_SERVICE */ 48d95e11bfSDag-Erling Smørgrav 49d95e11bfSDag-Erling Smørgrav #ifndef GSS_C_NT_HOSTBASED_SERVICE 50d95e11bfSDag-Erling Smørgrav #define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name 51d95e11bfSDag-Erling Smørgrav #endif /* GSS_C_NT_... */ 52d95e11bfSDag-Erling Smørgrav #endif /* !HEIMDAL */ 53d95e11bfSDag-Erling Smørgrav #endif /* KRB5 */ 54d95e11bfSDag-Erling Smørgrav 55d95e11bfSDag-Erling Smørgrav /* draft-ietf-secsh-gsskeyex-06 */ 56d95e11bfSDag-Erling Smørgrav #define SSH2_MSG_USERAUTH_GSSAPI_RESPONSE 60 57d95e11bfSDag-Erling Smørgrav #define SSH2_MSG_USERAUTH_GSSAPI_TOKEN 61 58d95e11bfSDag-Erling Smørgrav #define SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE 63 59d95e11bfSDag-Erling Smørgrav #define SSH2_MSG_USERAUTH_GSSAPI_ERROR 64 60d95e11bfSDag-Erling Smørgrav #define SSH2_MSG_USERAUTH_GSSAPI_ERRTOK 65 61efcad6b7SDag-Erling Smørgrav #define SSH2_MSG_USERAUTH_GSSAPI_MIC 66 62d95e11bfSDag-Erling Smørgrav 63d95e11bfSDag-Erling Smørgrav #define SSH_GSS_OIDTYPE 0x06 64d95e11bfSDag-Erling Smørgrav 65d95e11bfSDag-Erling Smørgrav typedef struct { 66d95e11bfSDag-Erling Smørgrav char *filename; 67d95e11bfSDag-Erling Smørgrav char *envvar; 68d95e11bfSDag-Erling Smørgrav char *envval; 69d95e11bfSDag-Erling Smørgrav void *data; 70d95e11bfSDag-Erling Smørgrav } ssh_gssapi_ccache; 71d95e11bfSDag-Erling Smørgrav 72d95e11bfSDag-Erling Smørgrav typedef struct { 73d95e11bfSDag-Erling Smørgrav gss_buffer_desc displayname; 74d95e11bfSDag-Erling Smørgrav gss_buffer_desc exportedname; 75d95e11bfSDag-Erling Smørgrav gss_cred_id_t creds; 76d95e11bfSDag-Erling Smørgrav struct ssh_gssapi_mech_struct *mech; 77d95e11bfSDag-Erling Smørgrav ssh_gssapi_ccache store; 78d95e11bfSDag-Erling Smørgrav } ssh_gssapi_client; 79d95e11bfSDag-Erling Smørgrav 80d95e11bfSDag-Erling Smørgrav typedef struct ssh_gssapi_mech_struct { 81d95e11bfSDag-Erling Smørgrav char *enc_name; 82d95e11bfSDag-Erling Smørgrav char *name; 83d95e11bfSDag-Erling Smørgrav gss_OID_desc oid; 84d95e11bfSDag-Erling Smørgrav int (*dochild) (ssh_gssapi_client *); 85d95e11bfSDag-Erling Smørgrav int (*userok) (ssh_gssapi_client *, char *); 86d95e11bfSDag-Erling Smørgrav int (*localname) (ssh_gssapi_client *, char **); 87d95e11bfSDag-Erling Smørgrav void (*storecreds) (ssh_gssapi_client *); 88d95e11bfSDag-Erling Smørgrav } ssh_gssapi_mech; 89d95e11bfSDag-Erling Smørgrav 90d95e11bfSDag-Erling Smørgrav typedef struct { 91d95e11bfSDag-Erling Smørgrav OM_uint32 major; /* both */ 92d95e11bfSDag-Erling Smørgrav OM_uint32 minor; /* both */ 93d95e11bfSDag-Erling Smørgrav gss_ctx_id_t context; /* both */ 94d95e11bfSDag-Erling Smørgrav gss_name_t name; /* both */ 95d95e11bfSDag-Erling Smørgrav gss_OID oid; /* client */ 96d95e11bfSDag-Erling Smørgrav gss_cred_id_t creds; /* server */ 97d95e11bfSDag-Erling Smørgrav gss_name_t client; /* server */ 98d95e11bfSDag-Erling Smørgrav gss_cred_id_t client_creds; /* server */ 99d95e11bfSDag-Erling Smørgrav } Gssctxt; 100d95e11bfSDag-Erling Smørgrav 101d95e11bfSDag-Erling Smørgrav extern ssh_gssapi_mech *supported_mechs[]; 102d95e11bfSDag-Erling Smørgrav 103d74d50a8SDag-Erling Smørgrav int ssh_gssapi_check_oid(Gssctxt *, void *, size_t); 104d74d50a8SDag-Erling Smørgrav void ssh_gssapi_set_oid_data(Gssctxt *, void *, size_t); 105d74d50a8SDag-Erling Smørgrav void ssh_gssapi_set_oid(Gssctxt *, gss_OID); 106d74d50a8SDag-Erling Smørgrav void ssh_gssapi_supported_oids(gss_OID_set *); 107d74d50a8SDag-Erling Smørgrav ssh_gssapi_mech *ssh_gssapi_get_ctype(Gssctxt *); 108d95e11bfSDag-Erling Smørgrav 109d74d50a8SDag-Erling Smørgrav OM_uint32 ssh_gssapi_import_name(Gssctxt *, const char *); 110d74d50a8SDag-Erling Smørgrav OM_uint32 ssh_gssapi_acquire_cred(Gssctxt *); 111d74d50a8SDag-Erling Smørgrav OM_uint32 ssh_gssapi_init_ctx(Gssctxt *, int, 112d74d50a8SDag-Erling Smørgrav gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *); 113d74d50a8SDag-Erling Smørgrav OM_uint32 ssh_gssapi_accept_ctx(Gssctxt *, 114d74d50a8SDag-Erling Smørgrav gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *); 115d74d50a8SDag-Erling Smørgrav OM_uint32 ssh_gssapi_getclient(Gssctxt *, ssh_gssapi_client *); 116d74d50a8SDag-Erling Smørgrav void ssh_gssapi_error(Gssctxt *); 117d74d50a8SDag-Erling Smørgrav char *ssh_gssapi_last_error(Gssctxt *, OM_uint32 *, OM_uint32 *); 118d74d50a8SDag-Erling Smørgrav void ssh_gssapi_build_ctx(Gssctxt **); 119d74d50a8SDag-Erling Smørgrav void ssh_gssapi_delete_ctx(Gssctxt **); 120efcad6b7SDag-Erling Smørgrav OM_uint32 ssh_gssapi_sign(Gssctxt *, gss_buffer_t, gss_buffer_t); 121d74d50a8SDag-Erling Smørgrav OM_uint32 ssh_gssapi_server_ctx(Gssctxt **, gss_OID); 122efcad6b7SDag-Erling Smørgrav void ssh_gssapi_buildmic(Buffer *, const char *, const char *, const char *); 123d95e11bfSDag-Erling Smørgrav 124d95e11bfSDag-Erling Smørgrav /* In the server */ 125d95e11bfSDag-Erling Smørgrav int ssh_gssapi_userok(char *name); 126efcad6b7SDag-Erling Smørgrav OM_uint32 ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t); 127d74d50a8SDag-Erling Smørgrav void ssh_gssapi_do_child(char ***, u_int *); 128efcad6b7SDag-Erling Smørgrav void ssh_gssapi_cleanup_creds(void); 129d95e11bfSDag-Erling Smørgrav void ssh_gssapi_storecreds(void); 130d95e11bfSDag-Erling Smørgrav 131d95e11bfSDag-Erling Smørgrav #endif /* GSSAPI */ 132d95e11bfSDag-Erling Smørgrav 133d95e11bfSDag-Erling Smørgrav #endif /* _SSH_GSS_H */ 134