2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2005 Doug Rabson
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <gssapi/gssapi.h>
36 #include "mech_switch.h"
43 _gss_mech_cred_find(gss_cred_id_t cred_handle, gss_OID mech_type)
45 struct _gss_cred *cred = (struct _gss_cred *)cred_handle;
46 struct _gss_mechanism_cred *mc;
49 return GSS_C_NO_CREDENTIAL;
51 SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
52 if (gss_oid_equal(mech_type, mc->gmc_mech_oid))
55 return GSS_C_NO_CREDENTIAL;
59 gss_init_sec_context(OM_uint32 * minor_status,
60 const gss_cred_id_t initiator_cred_handle,
61 gss_ctx_id_t * context_handle,
62 const gss_name_t target_name,
63 const gss_OID input_mech_type,
66 const gss_channel_bindings_t input_chan_bindings,
67 const gss_buffer_t input_token,
68 gss_OID * actual_mech_type,
69 gss_buffer_t output_token,
70 OM_uint32 * ret_flags,
73 OM_uint32 major_status;
74 struct _gss_mech_switch *m;
75 struct _gss_name *name = (struct _gss_name *) target_name;
76 struct _gss_mechanism_name *mn;
77 struct _gss_context *ctx = (struct _gss_context *) *context_handle;
78 gss_cred_id_t cred_handle;
80 gss_OID mech_type = input_mech_type;
84 _gss_buffer_zero(output_token);
86 *actual_mech_type = GSS_C_NO_OID;
93 * If we haven't allocated a context yet, do so now and lookup
94 * the mechanism switch table. If we have one already, make
95 * sure we use the same mechanism switch as before.
98 if (mech_type == GSS_C_NO_OID) {
100 if (_gss_mech_oids == GSS_C_NO_OID_SET
101 || _gss_mech_oids->count == 0)
102 return (GSS_S_BAD_MECH);
103 mech_type = &_gss_mech_oids->elements[0];
106 ctx = malloc(sizeof(struct _gss_context));
108 *minor_status = ENOMEM;
109 return (GSS_S_FAILURE);
111 memset(ctx, 0, sizeof(struct _gss_context));
112 m = ctx->gc_mech = _gss_find_mech_switch(mech_type);
115 return (GSS_S_BAD_MECH);
120 mech_type = &ctx->gc_mech->gm_mech_oid;
125 * Find the MN for this mechanism.
127 major_status = _gss_find_mn(minor_status, name, mech_type, &mn);
128 if (major_status != GSS_S_COMPLETE) {
131 return (major_status);
135 * If we have a cred, find the cred for this mechanism.
137 cred_handle = _gss_mech_cred_find(initiator_cred_handle, mech_type);
139 major_status = m->gm_init_sec_context(minor_status,
153 if (major_status != GSS_S_COMPLETE
154 && major_status != GSS_S_CONTINUE_NEEDED) {
157 _gss_buffer_zero(output_token);
158 _gss_mg_error(m, major_status, *minor_status);
160 *context_handle = (gss_ctx_id_t) ctx;
163 return (major_status);