1*ae771770SStanislav Sedov /*-
2*ae771770SStanislav Sedov * Copyright (c) 2005 Doug Rabson
3*ae771770SStanislav Sedov * All rights reserved.
4*ae771770SStanislav Sedov *
5*ae771770SStanislav Sedov * Redistribution and use in source and binary forms, with or without
6*ae771770SStanislav Sedov * modification, are permitted provided that the following conditions
7*ae771770SStanislav Sedov * are met:
8*ae771770SStanislav Sedov * 1. Redistributions of source code must retain the above copyright
9*ae771770SStanislav Sedov * notice, this list of conditions and the following disclaimer.
10*ae771770SStanislav Sedov * 2. Redistributions in binary form must reproduce the above copyright
11*ae771770SStanislav Sedov * notice, this list of conditions and the following disclaimer in the
12*ae771770SStanislav Sedov * documentation and/or other materials provided with the distribution.
13*ae771770SStanislav Sedov *
14*ae771770SStanislav Sedov * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*ae771770SStanislav Sedov * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*ae771770SStanislav Sedov * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*ae771770SStanislav Sedov * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*ae771770SStanislav Sedov * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*ae771770SStanislav Sedov * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*ae771770SStanislav Sedov * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*ae771770SStanislav Sedov * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*ae771770SStanislav Sedov * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*ae771770SStanislav Sedov * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*ae771770SStanislav Sedov * SUCH DAMAGE.
25*ae771770SStanislav Sedov *
26*ae771770SStanislav Sedov * $FreeBSD: src/lib/libgssapi/gss_import_sec_context.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
27*ae771770SStanislav Sedov */
28*ae771770SStanislav Sedov
29*ae771770SStanislav Sedov #include "mech_locl.h"
30*ae771770SStanislav Sedov
31*ae771770SStanislav Sedov GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_import_sec_context(OM_uint32 * minor_status,const gss_buffer_t interprocess_token,gss_ctx_id_t * context_handle)32*ae771770SStanislav Sedov gss_import_sec_context(OM_uint32 *minor_status,
33*ae771770SStanislav Sedov const gss_buffer_t interprocess_token,
34*ae771770SStanislav Sedov gss_ctx_id_t *context_handle)
35*ae771770SStanislav Sedov {
36*ae771770SStanislav Sedov OM_uint32 major_status;
37*ae771770SStanislav Sedov gssapi_mech_interface m;
38*ae771770SStanislav Sedov struct _gss_context *ctx;
39*ae771770SStanislav Sedov gss_OID_desc mech_oid;
40*ae771770SStanislav Sedov gss_buffer_desc buf;
41*ae771770SStanislav Sedov unsigned char *p;
42*ae771770SStanislav Sedov size_t len;
43*ae771770SStanislav Sedov
44*ae771770SStanislav Sedov *minor_status = 0;
45*ae771770SStanislav Sedov *context_handle = GSS_C_NO_CONTEXT;
46*ae771770SStanislav Sedov
47*ae771770SStanislav Sedov /*
48*ae771770SStanislav Sedov * We added an oid to the front of the token in
49*ae771770SStanislav Sedov * gss_export_sec_context.
50*ae771770SStanislav Sedov */
51*ae771770SStanislav Sedov p = interprocess_token->value;
52*ae771770SStanislav Sedov len = interprocess_token->length;
53*ae771770SStanislav Sedov if (len < 2)
54*ae771770SStanislav Sedov return (GSS_S_DEFECTIVE_TOKEN);
55*ae771770SStanislav Sedov mech_oid.length = (p[0] << 8) | p[1];
56*ae771770SStanislav Sedov if (len < mech_oid.length + 2)
57*ae771770SStanislav Sedov return (GSS_S_DEFECTIVE_TOKEN);
58*ae771770SStanislav Sedov mech_oid.elements = p + 2;
59*ae771770SStanislav Sedov buf.length = len - 2 - mech_oid.length;
60*ae771770SStanislav Sedov buf.value = p + 2 + mech_oid.length;
61*ae771770SStanislav Sedov
62*ae771770SStanislav Sedov m = __gss_get_mechanism(&mech_oid);
63*ae771770SStanislav Sedov if (!m)
64*ae771770SStanislav Sedov return (GSS_S_DEFECTIVE_TOKEN);
65*ae771770SStanislav Sedov
66*ae771770SStanislav Sedov ctx = malloc(sizeof(struct _gss_context));
67*ae771770SStanislav Sedov if (!ctx) {
68*ae771770SStanislav Sedov *minor_status = ENOMEM;
69*ae771770SStanislav Sedov return (GSS_S_FAILURE);
70*ae771770SStanislav Sedov }
71*ae771770SStanislav Sedov ctx->gc_mech = m;
72*ae771770SStanislav Sedov major_status = m->gm_import_sec_context(minor_status,
73*ae771770SStanislav Sedov &buf, &ctx->gc_ctx);
74*ae771770SStanislav Sedov if (major_status != GSS_S_COMPLETE) {
75*ae771770SStanislav Sedov _gss_mg_error(m, major_status, *minor_status);
76*ae771770SStanislav Sedov free(ctx);
77*ae771770SStanislav Sedov } else {
78*ae771770SStanislav Sedov *context_handle = (gss_ctx_id_t) ctx;
79*ae771770SStanislav Sedov }
80*ae771770SStanislav Sedov
81*ae771770SStanislav Sedov return (major_status);
82*ae771770SStanislav Sedov }
83