1 /* $OpenBSD: ssh-gss.h,v 1.5 2004/06/21 17:36:31 avsm Exp $ */
3 * Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 #elif defined(HAVE_GSSAPI_GSSAPI_H)
37 #include <gssapi/gssapi.h>
43 # ifdef HAVE_GSSAPI_GENERIC_H
44 # include <gssapi_generic.h>
45 # elif defined(HAVE_GSSAPI_GSSAPI_GENERIC_H)
46 # include <gssapi/gssapi_generic.h>
49 /* MIT Kerberos doesn't seem to define GSS_NT_HOSTBASED_SERVICE */
51 #ifndef GSS_C_NT_HOSTBASED_SERVICE
52 #define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name
53 #endif /* GSS_C_NT_... */
56 #endif /* !MECHGLUE */
58 /* draft-ietf-secsh-gsskeyex-06 */
59 #define SSH2_MSG_USERAUTH_GSSAPI_RESPONSE 60
60 #define SSH2_MSG_USERAUTH_GSSAPI_TOKEN 61
61 #define SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE 63
62 #define SSH2_MSG_USERAUTH_GSSAPI_ERROR 64
63 #define SSH2_MSG_USERAUTH_GSSAPI_ERRTOK 65
64 #define SSH2_MSG_USERAUTH_GSSAPI_MIC 66
66 #define SSH_GSS_OIDTYPE 0x06
68 #define SSH2_MSG_KEXGSS_INIT 30
69 #define SSH2_MSG_KEXGSS_CONTINUE 31
70 #define SSH2_MSG_KEXGSS_COMPLETE 32
71 #define SSH2_MSG_KEXGSS_HOSTKEY 33
72 #define SSH2_MSG_KEXGSS_ERROR 34
73 #define SSH2_MSG_KEXGSS_GROUPREQ 40
74 #define SSH2_MSG_KEXGSS_GROUP 41
75 #define KEX_GSS_GRP1_SHA1_ID "gss-group1-sha1-"
76 #define KEX_GSS_GEX_SHA1_ID "gss-gex-sha1-"
86 gss_buffer_desc displayname;
87 gss_buffer_desc exportedname;
89 struct ssh_gssapi_mech_struct *mech;
90 ssh_gssapi_ccache store;
93 typedef struct ssh_gssapi_mech_struct {
97 int (*dochild) (ssh_gssapi_client *);
98 int (*userok) (ssh_gssapi_client *, char *);
99 int (*localname) (ssh_gssapi_client *, char **);
100 void (*storecreds) (ssh_gssapi_client *);
104 OM_uint32 major; /* both */
105 OM_uint32 minor; /* both */
106 gss_ctx_id_t context; /* both */
107 gss_name_t name; /* both */
108 gss_OID oid; /* both */
109 gss_cred_id_t creds; /* server */
110 gss_name_t client; /* server */
111 gss_cred_id_t client_creds; /* server */
114 extern ssh_gssapi_mech *supported_mechs[];
115 extern Gssctxt *gss_kex_context;
117 int ssh_gssapi_check_oid(Gssctxt *, void *, size_t);
118 void ssh_gssapi_set_oid_data(Gssctxt *, void *, size_t);
119 void ssh_gssapi_set_oid(Gssctxt *, gss_OID);
120 void ssh_gssapi_supported_oids(gss_OID_set *);
121 ssh_gssapi_mech *ssh_gssapi_get_ctype(Gssctxt *);
123 OM_uint32 ssh_gssapi_import_name(Gssctxt *, const char *);
124 OM_uint32 ssh_gssapi_acquire_cred(Gssctxt *);
125 OM_uint32 ssh_gssapi_init_ctx(Gssctxt *, int,
126 gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *);
127 OM_uint32 ssh_gssapi_accept_ctx(Gssctxt *,
128 gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *);
129 OM_uint32 ssh_gssapi_getclient(Gssctxt *, ssh_gssapi_client *);
130 void ssh_gssapi_error(Gssctxt *);
131 char *ssh_gssapi_last_error(Gssctxt *, OM_uint32 *, OM_uint32 *);
132 void ssh_gssapi_build_ctx(Gssctxt **);
133 void ssh_gssapi_delete_ctx(Gssctxt **);
134 OM_uint32 ssh_gssapi_sign(Gssctxt *, gss_buffer_t, gss_buffer_t);
135 OM_uint32 ssh_gssapi_server_ctx(Gssctxt **, gss_OID);
136 void ssh_gssapi_buildmic(Buffer *, const char *, const char *, const char *);
138 int ssh_gssapi_localname(char **name);
140 typedef int ssh_gssapi_check_fn(gss_OID, void *);
141 char *ssh_gssapi_client_mechanisms(const char *host);
142 char *ssh_gssapi_kex_mechs(gss_OID_set, ssh_gssapi_check_fn *, void *);
143 int ssh_gssapi_check_mechanism(gss_OID, void *);
144 gss_OID ssh_gssapi_id_kex(Gssctxt *, char *, int *);
146 int ssh_gssapi_server_check_mech(gss_OID, void *);
147 int ssh_gssapi_userok(char *name);
148 OM_uint32 ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t);
149 void ssh_gssapi_do_child(char ***, u_int *);
150 void ssh_gssapi_cleanup_creds(void);
151 void ssh_gssapi_storecreds(void);
152 char * ssh_gssapi_server_mechanisms(void);
153 int ssh_gssapi_oid_table_ok();
156 gss_cred_id_t __gss_get_mechanism_cred
157 (gss_cred_id_t, /* union_cred */
158 gss_OID /* mech_type */
164 #endif /* _SSH_GSS_H */