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freebsd/lib/libgssapi/gss_inquire_cred.c
Doug Rabson c0b9f4fe65 Add a new extensible GSS-API layer which can support GSS-API plugins,
similar the the Solaris implementation. Repackage the krb5 GSS mechanism
as a plugin library for the new implementation. This also includes a
comprehensive set of manpages for the GSS-API functions with text mostly
taken from the RFC.

Reviewed by: Love Hörnquist Åstrand <lha@it.su.se>, ru (build system), des (openssh parts)
2005-12-29 14:40:22 +00:00

168 lines
4.5 KiB
C

/*-
* Copyright (c) 2005 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <gssapi/gssapi.h>
#include <stdlib.h>
#include <errno.h>
#include "mech_switch.h"
#include "name.h"
#include "cred.h"
OM_uint32
gss_inquire_cred(OM_uint32 *minor_status,
const gss_cred_id_t cred_handle,
gss_name_t *name_ret,
OM_uint32 *lifetime,
gss_cred_usage_t *cred_usage,
gss_OID_set *mechanisms)
{
OM_uint32 major_status;
struct _gss_mech_switch *m;
struct _gss_cred *cred = (struct _gss_cred *) cred_handle;
struct _gss_mechanism_cred *mc;
struct _gss_name *name;
struct _gss_mechanism_name *mn;
OM_uint32 min_lifetime;
*minor_status = 0;
if (name_ret)
*name_ret = 0;
if (lifetime)
*lifetime = 0;
if (cred_usage)
*cred_usage = 0;
if (name_ret) {
name = malloc(sizeof(struct _gss_name));
if (!name) {
*minor_status = ENOMEM;
return (GSS_S_FAILURE);
}
memset(name, 0, sizeof(struct _gss_name));
SLIST_INIT(&name->gn_mn);
} else {
name = 0;
}
if (mechanisms) {
major_status = gss_create_empty_oid_set(minor_status,
mechanisms);
if (major_status) {
if (name) free(name);
return (major_status);
}
}
min_lifetime = GSS_C_INDEFINITE;
if (cred) {
SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
gss_name_t mc_name;
OM_uint32 mc_lifetime;
major_status = mc->gmc_mech->gm_inquire_cred(minor_status,
mc->gmc_cred, &mc_name, &mc_lifetime, NULL, NULL);
if (major_status)
continue;
if (name) {
mn = malloc(sizeof(struct _gss_mechanism_name));
if (!mn) {
mc->gmc_mech->gm_release_name(minor_status,
&mc_name);
continue;
}
mn->gmn_mech = mc->gmc_mech;
mn->gmn_mech_oid = mc->gmc_mech_oid;
mn->gmn_name = mc_name;
SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
} else {
mc->gmc_mech->gm_release_name(minor_status,
&mc_name);
}
if (mc_lifetime < min_lifetime)
min_lifetime = mc_lifetime;
if (mechanisms)
gss_add_oid_set_member(minor_status,
mc->gmc_mech_oid, mechanisms);
}
} else {
SLIST_FOREACH(m, &_gss_mechs, gm_link) {
gss_name_t mc_name;
OM_uint32 mc_lifetime;
major_status = m->gm_inquire_cred(minor_status,
GSS_C_NO_CREDENTIAL, &mc_name, &mc_lifetime,
cred_usage, NULL);
if (major_status)
continue;
if (name && mc_name) {
mn = malloc(
sizeof(struct _gss_mechanism_name));
if (!mn) {
mc->gmc_mech->gm_release_name(
minor_status, &mc_name);
continue;
}
mn->gmn_mech = mc->gmc_mech;
mn->gmn_mech_oid = mc->gmc_mech_oid;
mn->gmn_name = mc_name;
SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
} else if (mc_name) {
mc->gmc_mech->gm_release_name(minor_status,
&mc_name);
}
if (mc_lifetime < min_lifetime)
min_lifetime = mc_lifetime;
if (mechanisms)
gss_add_oid_set_member(minor_status,
&m->gm_mech_oid, mechanisms);
}
if ((*mechanisms)->count == 0) {
gss_release_oid_set(minor_status, mechanisms);
*minor_status = 0;
return (GSS_S_NO_CRED);
}
}
*minor_status = 0;
if (name_ret)
*name_ret = (gss_name_t) name;
if (lifetime)
*lifetime = min_lifetime;
if (cred && cred_usage)
*cred_usage = cred->gc_usage;
return (GSS_S_COMPLETE);
}