2 * Copyright (c) 2005 Doug Rabson
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 AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <gssapi/gssapi.h>
34 #include "mech_switch.h"
41 _gss_mech_cred_find(gss_cred_id_t cred_handle, gss_OID mech_type)
43 struct _gss_cred *cred = (struct _gss_cred *)cred_handle;
44 struct _gss_mechanism_cred *mc;
47 return GSS_C_NO_CREDENTIAL;
49 SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
50 if (gss_oid_equal(mech_type, mc->gmc_mech_oid))
53 return GSS_C_NO_CREDENTIAL;
57 gss_init_sec_context(OM_uint32 * minor_status,
58 const gss_cred_id_t initiator_cred_handle,
59 gss_ctx_id_t * context_handle,
60 const gss_name_t target_name,
61 const gss_OID input_mech_type,
64 const gss_channel_bindings_t input_chan_bindings,
65 const gss_buffer_t input_token,
66 gss_OID * actual_mech_type,
67 gss_buffer_t output_token,
68 OM_uint32 * ret_flags,
71 OM_uint32 major_status;
72 struct _gss_mech_switch *m;
73 struct _gss_name *name = (struct _gss_name *) target_name;
74 struct _gss_mechanism_name *mn;
75 struct _gss_context *ctx = (struct _gss_context *) *context_handle;
76 gss_cred_id_t cred_handle;
78 gss_OID mech_type = input_mech_type;
82 _gss_buffer_zero(output_token);
84 *actual_mech_type = GSS_C_NO_OID;
91 * If we haven't allocated a context yet, do so now and lookup
92 * the mechanism switch table. If we have one already, make
93 * sure we use the same mechanism switch as before.
96 if (mech_type == GSS_C_NO_OID) {
98 if (_gss_mech_oids == GSS_C_NO_OID_SET
99 || _gss_mech_oids->count == 0)
100 return (GSS_S_BAD_MECH);
101 mech_type = &_gss_mech_oids->elements[0];
104 ctx = malloc(sizeof(struct _gss_context));
106 *minor_status = ENOMEM;
107 return (GSS_S_FAILURE);
109 memset(ctx, 0, sizeof(struct _gss_context));
110 m = ctx->gc_mech = _gss_find_mech_switch(mech_type);
113 return (GSS_S_BAD_MECH);
118 mech_type = &ctx->gc_mech->gm_mech_oid;
123 * Find the MN for this mechanism.
125 major_status = _gss_find_mn(minor_status, name, mech_type, &mn);
126 if (major_status != GSS_S_COMPLETE) {
129 return (major_status);
133 * If we have a cred, find the cred for this mechanism.
135 cred_handle = _gss_mech_cred_find(initiator_cred_handle, mech_type);
137 major_status = m->gm_init_sec_context(minor_status,
151 if (major_status != GSS_S_COMPLETE
152 && major_status != GSS_S_CONTINUE_NEEDED) {
155 _gss_buffer_zero(output_token);
156 _gss_mg_error(m, major_status, *minor_status);
158 *context_handle = (gss_ctx_id_t) ctx;
161 return (major_status);