1 /* $OpenBSD: ssh-gss.h,v 1.4 2003/11/17 11:06:07 markus 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_KEXGSS_INIT 30
60 #define SSH2_MSG_KEXGSS_CONTINUE 31
61 #define SSH2_MSG_KEXGSS_COMPLETE 32
62 #define SSH2_MSG_KEXGSS_HOSTKEY 33
63 #define SSH2_MSG_KEXGSS_ERROR 34
64 #define SSH2_MSG_USERAUTH_GSSAPI_RESPONSE 60
65 #define SSH2_MSG_USERAUTH_GSSAPI_TOKEN 61
66 #define SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE 63
67 #define SSH2_MSG_USERAUTH_GSSAPI_ERROR 64
68 #define SSH2_MSG_USERAUTH_GSSAPI_ERRTOK 65
69 #define SSH2_MSG_USERAUTH_GSSAPI_MIC 66
71 #define SSH_GSS_OIDTYPE 0x06
73 #define KEX_GSS_SHA1 "gss-group1-sha1-"
83 gss_buffer_desc displayname;
84 gss_buffer_desc exportedname;
86 struct ssh_gssapi_mech_struct *mech;
87 ssh_gssapi_ccache store;
90 typedef struct ssh_gssapi_mech_struct {
94 int (*dochild) (ssh_gssapi_client *);
95 int (*userok) (ssh_gssapi_client *, char *);
96 int (*localname) (ssh_gssapi_client *, char **);
97 void (*storecreds) (ssh_gssapi_client *);
101 OM_uint32 major; /* both */
102 OM_uint32 minor; /* both */
103 gss_ctx_id_t context; /* both */
104 gss_name_t name; /* both */
105 gss_OID oid; /* both */
106 gss_cred_id_t creds; /* server */
107 gss_name_t client; /* server */
108 gss_cred_id_t client_creds; /* server */
111 extern ssh_gssapi_mech *supported_mechs[];
113 char *ssh_gssapi_mechanisms(char *host);
114 char *ssh_gssapi_client_mechanisms(char *host);
115 gss_OID ssh_gssapi_client_id_kex(Gssctxt *ctx, char *name);
116 int ssh_gssapi_check_oid(Gssctxt *ctx, void *data, size_t len);
117 void ssh_gssapi_set_oid_data(Gssctxt *ctx, void *data, size_t len);
118 void ssh_gssapi_set_oid(Gssctxt *ctx, gss_OID oid);
119 void ssh_gssapi_supported_oids(gss_OID_set *oidset);
120 ssh_gssapi_mech *ssh_gssapi_get_ctype(Gssctxt *ctxt);
122 OM_uint32 ssh_gssapi_import_name(Gssctxt *ctx, const char *host);
123 OM_uint32 ssh_gssapi_acquire_cred(Gssctxt *ctx);
124 OM_uint32 ssh_gssapi_init_ctx(Gssctxt *ctx, int deleg_creds,
125 gss_buffer_desc *recv_tok, gss_buffer_desc *send_tok, OM_uint32 *flags);
126 OM_uint32 ssh_gssapi_accept_ctx(Gssctxt *ctx,
127 gss_buffer_desc *recv_tok, gss_buffer_desc *send_tok, OM_uint32 *flags);
128 OM_uint32 ssh_gssapi_getclient(Gssctxt *ctx, ssh_gssapi_client *);
129 void ssh_gssapi_error(Gssctxt *ctx);
130 char *ssh_gssapi_last_error(Gssctxt *ctxt, OM_uint32 *maj, OM_uint32 *min);
131 void ssh_gssapi_build_ctx(Gssctxt **ctx);
132 void ssh_gssapi_delete_ctx(Gssctxt **ctx);
133 OM_uint32 ssh_gssapi_sign(Gssctxt *, gss_buffer_t, gss_buffer_t);
134 OM_uint32 ssh_gssapi_server_ctx(Gssctxt **ctx, gss_OID oid);
135 void ssh_gssapi_buildmic(Buffer *, const char *, const char *, const char *);
137 int ssh_gssapi_check_mechanism(gss_OID oid, char *host);
140 gss_OID ssh_gssapi_server_id_kex(char *name);
141 int ssh_gssapi_userok(char *name);
142 int ssh_gssapi_localname(char **name);
143 OM_uint32 ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t);
144 void ssh_gssapi_do_child(char ***envp, u_int *envsizep);
145 void ssh_gssapi_cleanup_creds(void);
146 void ssh_gssapi_storecreds(void);
147 char *ssh_gssapi_server_mechanisms();
150 gss_cred_id_t __gss_get_mechanism_cred
151 (gss_cred_id_t, /* union_cred */
152 gss_OID /* mech_type */
158 #endif /* _SSH_GSS_H */