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144 lines
4.0 KiB
C
144 lines
4.0 KiB
C
/*-
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* Copyright (c) 2005 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <gssapi/gssapi.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "mech_switch.h"
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#include "name.h"
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#include "cred.h"
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#include "context.h"
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OM_uint32
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gss_init_sec_context(OM_uint32 * minor_status,
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const gss_cred_id_t initiator_cred_handle,
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gss_ctx_id_t * context_handle,
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const gss_name_t target_name,
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const gss_OID imech_type,
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OM_uint32 req_flags,
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OM_uint32 time_req,
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const gss_channel_bindings_t input_chan_bindings,
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const gss_buffer_t input_token,
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gss_OID * actual_mech_type,
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gss_buffer_t output_token,
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OM_uint32 * ret_flags,
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OM_uint32 * time_rec)
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{
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OM_uint32 major_status;
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gss_OID mech_type;
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struct _gss_mech_switch *m;
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struct _gss_name *name = (struct _gss_name *) target_name;
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struct _gss_mechanism_name *mn;
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struct _gss_context *ctx = (struct _gss_context *) *context_handle;
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struct _gss_cred *cred = (struct _gss_cred *) initiator_cred_handle;
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struct _gss_mechanism_cred *mc;
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gss_cred_id_t cred_handle;
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int allocated_ctx;
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*minor_status = 0;
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if ((mech_type = imech_type) == GSS_C_NO_OID) {
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_gss_load_mech();
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mech_type = &SLIST_FIRST(&_gss_mechs)->gm_mech_oid;
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if (mech_type == NULL)
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return (GSS_S_BAD_MECH);
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}
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/*
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* If we haven't allocated a context yet, do so now and lookup
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* the mechanism switch table. If we have one already, make
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* sure we use the same mechanism switch as before.
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*/
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if (!ctx) {
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ctx = malloc(sizeof(struct _gss_context));
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if (!ctx) {
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*minor_status = ENOMEM;
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return (GSS_S_FAILURE);
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}
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memset(ctx, 0, sizeof(struct _gss_context));
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m = ctx->gc_mech = _gss_find_mech_switch(mech_type);
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if (!m) {
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free(ctx);
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return (GSS_S_BAD_MECH);
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}
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allocated_ctx = 1;
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} else {
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m = ctx->gc_mech;
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allocated_ctx = 0;
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}
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/*
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* Find the MN for this mechanism.
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*/
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mn = _gss_find_mn(name, mech_type);
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if (mn == NULL) {
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if (allocated_ctx)
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free(ctx);
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return GSS_S_BAD_NAME;
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}
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/*
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* If we have a cred, find the cred for this mechanism.
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*/
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cred_handle = GSS_C_NO_CREDENTIAL;
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if (cred) {
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SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
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if (_gss_oid_equal(mech_type, mc->gmc_mech_oid)) {
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cred_handle = mc->gmc_cred;
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break;
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}
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}
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}
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major_status = m->gm_init_sec_context(minor_status,
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cred_handle,
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&ctx->gc_ctx,
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mn->gmn_name,
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mech_type,
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req_flags,
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time_req,
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input_chan_bindings,
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input_token,
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actual_mech_type,
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output_token,
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ret_flags,
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time_rec);
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if (major_status != GSS_S_COMPLETE
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&& major_status != GSS_S_CONTINUE_NEEDED) {
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if (allocated_ctx)
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free(ctx);
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} else {
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*context_handle = (gss_ctx_id_t) ctx;
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}
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return (major_status);
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}
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