diff options
Diffstat (limited to 'lib/libgssapi/gss_acquire_cred.c')
| -rw-r--r-- | lib/libgssapi/gss_acquire_cred.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/lib/libgssapi/gss_acquire_cred.c b/lib/libgssapi/gss_acquire_cred.c new file mode 100644 index 0000000..e65bb27 --- /dev/null +++ b/lib/libgssapi/gss_acquire_cred.c @@ -0,0 +1,166 @@ +/*- + * 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_acquire_cred(OM_uint32 *minor_status, + const gss_name_t desired_name, + OM_uint32 time_req, + const gss_OID_set desired_mechs, + gss_cred_usage_t cred_usage, + gss_cred_id_t *output_cred_handle, + gss_OID_set *actual_mechs, + OM_uint32 *time_rec) +{ + OM_uint32 major_status; + gss_OID_set mechs = desired_mechs; + gss_OID_set_desc set; + struct _gss_name *name = (struct _gss_name *) desired_name; + struct _gss_mech_switch *m; + struct _gss_cred *cred; + struct _gss_mechanism_cred *mc; + struct _gss_mechanism_name *mn; + OM_uint32 min_time, time; + int i; + + /* + * First make sure that at least one of the requested + * mechanisms is one that we support. + */ + if (mechs) { + _gss_load_mech(); + for (i = 0; i < mechs->count; i++) { + int t; + gss_test_oid_set_member(minor_status, + &mechs->elements[i], _gss_mech_oids, &t); + if (t) + break; + } + if (i == mechs->count) { + *output_cred_handle = 0; + *minor_status = 0; + return (GSS_S_BAD_MECH); + } + } + + if (actual_mechs) { + major_status = gss_create_empty_oid_set(minor_status, + actual_mechs); + if (major_status) + return (major_status); + } + + cred = malloc(sizeof(struct _gss_cred)); + if (!cred) { + if (actual_mechs) + gss_release_oid_set(minor_status, actual_mechs); + *minor_status = ENOMEM; + return (GSS_S_FAILURE); + } + cred->gc_usage = cred_usage; + SLIST_INIT(&cred->gc_mc); + + if (mechs == GSS_C_NO_OID_SET) + mechs = _gss_mech_oids; + + set.count = 1; + min_time = GSS_C_INDEFINITE; + for (i = 0; i < mechs->count; i++) { + m = _gss_find_mech_switch(&mechs->elements[i]); + if (!m) + continue; + + if (desired_name != GSS_C_NO_NAME) { + mn = _gss_find_mn(name, &mechs->elements[i]); + if (!mn) + continue; + } + + mc = malloc(sizeof(struct _gss_mechanism_cred)); + if (!mc) { + continue; + } + mc->gmc_mech = m; + mc->gmc_mech_oid = &m->gm_mech_oid; + + /* + * XXX Probably need to do something with actual_mechs. + */ + set.elements = &mechs->elements[i]; + major_status = m->gm_acquire_cred(minor_status, + (desired_name != GSS_C_NO_NAME + ? mn->gmn_name : GSS_C_NO_NAME), + time_req, &set, cred_usage, + &mc->gmc_cred, NULL, &time); + if (major_status) { + free(mc); + continue; + } + if (time < min_time) + min_time = time; + + if (actual_mechs) { + major_status = gss_add_oid_set_member(minor_status, + mc->gmc_mech_oid, actual_mechs); + if (major_status) { + m->gm_release_cred(minor_status, + &mc->gmc_cred); + free(mc); + continue; + } + } + + SLIST_INSERT_HEAD(&cred->gc_mc, mc, gmc_link); + } + + /* + * If we didn't manage to create a single credential, return + * an error. + */ + if (!SLIST_FIRST(&cred->gc_mc)) { + free(cred); + if (actual_mechs) + gss_release_oid_set(minor_status, actual_mechs); + *output_cred_handle = 0; + *minor_status = 0; + return (GSS_S_NO_CRED); + } + + if (time_rec) + *time_rec = min_time; + *output_cred_handle = (gss_cred_id_t) cred; + *minor_status = 0; + return (GSS_S_COMPLETE); +} |
