2 * Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <gssapi_generic.h>
40 /* MIT Kerberos doesn't seem to define GSS_NT_HOSTBASED_SERVICE */
42 #ifndef GSS_C_NT_HOSTBASED_SERVICE
43 #define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name
44 #endif /* GSS_C_NT_... */
47 #endif /* !MECHGLUE */
49 /* draft-ietf-secsh-gsskeyex-03 */
50 #define SSH2_MSG_KEXGSS_INIT 30
51 #define SSH2_MSG_KEXGSS_CONTINUE 31
52 #define SSH2_MSG_KEXGSS_COMPLETE 32
53 #define SSH2_MSG_KEXGSS_HOSTKEY 33
54 #define SSH2_MSG_KEXGSS_ERROR 34
55 #define SSH2_MSG_USERAUTH_GSSAPI_RESPONSE 60
56 #define SSH2_MSG_USERAUTH_GSSAPI_TOKEN 61
57 #define SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE 63
58 #define SSH2_MSG_USERAUTH_GSSAPI_ERROR 64
60 #define KEX_GSS_SHA1 "gss-group1-sha1-"
72 struct ssh_gssapi_mech_struct *mech;
73 ssh_gssapi_ccache store;
76 typedef struct ssh_gssapi_mech_struct {
80 int (*dochild) (ssh_gssapi_client *);
81 int (*userok) (ssh_gssapi_client *, char *);
82 int (*localname) (ssh_gssapi_client *, char **);
83 void (*storecreds) (ssh_gssapi_client *);
89 OM_uint32 major; /* both */
90 OM_uint32 minor; /* both */
91 gss_ctx_id_t context; /* both */
92 gss_name_t name; /* both */
93 gss_OID oid; /* both */
94 gss_cred_id_t creds; /* server */
95 gss_name_t client; /* server */
96 gss_cred_id_t client_creds; /* server */
99 extern ssh_gssapi_mech *supported_mechs[];
101 char *ssh_gssapi_mechanisms(char *host);
102 char *ssh_gssapi_client_mechanisms(char *host);
103 gss_OID ssh_gssapi_client_id_kex(Gssctxt *ctx, char *name);
104 int ssh_gssapi_check_oid(Gssctxt *ctx, void *data, size_t len);
105 void ssh_gssapi_set_oid_data(Gssctxt *ctx, void *data, size_t len);
106 void ssh_gssapi_set_oid(Gssctxt *ctx, gss_OID oid);
107 void ssh_gssapi_supported_oids(gss_OID_set *oidset);
108 ssh_gssapi_mech *ssh_gssapi_get_ctype(Gssctxt *ctxt);
109 gss_OID ssh_gssapi_id_kex(Gssctxt *ctx, char *name);
111 OM_uint32 ssh_gssapi_import_name(Gssctxt *ctx, const char *host);
112 OM_uint32 ssh_gssapi_acquire_cred(Gssctxt *ctx);
113 OM_uint32 ssh_gssapi_init_ctx(Gssctxt *ctx, int deleg_creds,
114 gss_buffer_desc *recv_tok,
115 gss_buffer_desc *send_tok, OM_uint32 *flags);
116 OM_uint32 ssh_gssapi_accept_ctx(Gssctxt *ctx,
117 gss_buffer_desc *recv_tok,
118 gss_buffer_desc *send_tok,
120 OM_uint32 ssh_gssapi_getclient(Gssctxt *ctx,
121 ssh_gssapi_mech **mech,
122 gss_buffer_desc *name,
123 gss_cred_id_t *creds);
124 void ssh_gssapi_error(Gssctxt *ctx);
125 char *ssh_gssapi_last_error(Gssctxt *ctxt, OM_uint32 *maj, OM_uint32 *min);
126 void ssh_gssapi_build_ctx(Gssctxt **ctx);
127 void ssh_gssapi_delete_ctx(Gssctxt **ctx);
128 OM_uint32 ssh_gssapi_server_ctx(Gssctxt **ctx,gss_OID oid);
130 int ssh_gssapi_check_mechanism(gss_OID oid, char *host);
133 gss_OID ssh_gssapi_server_id_kex(Gssctxt *ctx, char *name);
134 int ssh_gssapi_userok(char *name);
135 int ssh_gssapi_localname(char **user);
136 void ssh_gssapi_server(Kex *kex, Buffer *client_kexinit,
137 Buffer *server_kexinit);
139 OM_uint32 ssh_gssapi_sign(Gssctxt *ctx, gss_buffer_desc *buffer,
140 gss_buffer_desc *hash);
142 void ssh_gssapi_do_child(char ***envp, u_int *envsizep);
143 void ssh_gssapi_cleanup_creds(void *ignored);
144 void ssh_gssapi_storecreds();
145 char *ssh_gssapi_server_mechanisms();
148 int gsi_gridmap(char *subject_name, char **mapped_name);
152 gss_cred_id_t __gss_get_mechanism_cred
153 (gss_cred_id_t, /* union_cred */
154 gss_OID /* mech_type */
160 #endif /* _SSH_GSS_H */