diff options
Diffstat (limited to 'third_party/heimdal/lib/gssapi/mech/gss_inquire_cred.c')
| -rw-r--r-- | third_party/heimdal/lib/gssapi/mech/gss_inquire_cred.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/gssapi/mech/gss_inquire_cred.c b/third_party/heimdal/lib/gssapi/mech/gss_inquire_cred.c new file mode 100644 index 0000000..305cae2 --- /dev/null +++ b/third_party/heimdal/lib/gssapi/mech/gss_inquire_cred.c @@ -0,0 +1,218 @@ +/*- + * 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: src/lib/libgssapi/gss_inquire_cred.c,v 1.1 2005/12/29 14:40:20 dfr Exp $ + */ + +#include "mech_locl.h" + +#define AUSAGE 1 +#define IUSAGE 2 + +static void +updateusage(gss_cred_usage_t usage, int *usagemask) +{ + if (usage == GSS_C_BOTH) + *usagemask |= AUSAGE | IUSAGE; + else if (usage == GSS_C_ACCEPT) + *usagemask |= AUSAGE; + else if (usage == GSS_C_INITIATE) + *usagemask |= IUSAGE; +} + +GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL +gss_inquire_cred(OM_uint32 *minor_status, + gss_const_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_name *name; + struct _gss_mechanism_name *mn; + OM_uint32 min_lifetime; + int found = FALSE; + int usagemask = 0; + gss_cred_usage_t usage; + + _gss_load_mech(); + + *minor_status = 0; + if (name_ret) + *name_ret = GSS_C_NO_NAME; + if (lifetime) + *lifetime = 0; + if (cred_usage) + *cred_usage = 0; + if (mechanisms) + *mechanisms = GSS_C_NO_OID_SET; + + if (name_ret) { + name = _gss_create_name(NULL, NULL); + if (name == NULL) { + *minor_status = ENOMEM; + return (GSS_S_FAILURE); + } + } else { + name = NULL; + } + + 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) { + struct _gss_mechanism_cred *mc; + + HEIM_TAILQ_FOREACH(mc, &cred->gc_mc, gmc_link) { + gss_name_t mc_name = GSS_C_NO_NAME; + OM_uint32 mc_lifetime = GSS_C_INDEFINITE; + + heim_assert((mc->gmc_mech->gm_flags & GM_USE_MG_CRED) == 0, + "should not have mech creds for GM_USE_MG_CRED mechs"); + + if (mc->gmc_mech->gm_inquire_cred == NULL) + continue; + + major_status = mc->gmc_mech->gm_inquire_cred(minor_status, + mc->gmc_cred, &mc_name, &mc_lifetime, &usage, NULL); + if (major_status) + continue; + + updateusage(usage, &usagemask); + 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; + HEIM_TAILQ_INSERT_TAIL(&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); + found = TRUE; + } + } else { + HEIM_TAILQ_FOREACH(m, &_gss_mechs, gm_link) { + gss_name_t mc_name; + OM_uint32 mc_lifetime; + + if (m->gm_mech.gm_inquire_cred == NULL || + (m->gm_mech.gm_flags & GM_USE_MG_CRED)) + continue; + + major_status = m->gm_mech.gm_inquire_cred(minor_status, + GSS_C_NO_CREDENTIAL, &mc_name, &mc_lifetime, + &usage, NULL); + if (major_status) + continue; + + updateusage(usage, &usagemask); + if (name && mc_name) { + mn = malloc( + sizeof(struct _gss_mechanism_name)); + if (!mn) { + m->gm_mech.gm_release_name( + minor_status, &mc_name); + continue; + } + mn->gmn_mech = &m->gm_mech; + mn->gmn_mech_oid = m->gm_mech_oid; + mn->gmn_name = mc_name; + HEIM_TAILQ_INSERT_TAIL(&name->gn_mn, mn, gmn_link); + } else if (mc_name) { + m->gm_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); + found = TRUE; + } + } + + if (found && mechanisms) { + /* GM_USE_MG_CRED mechs (SPNEGO) always can be used */ + HEIM_TAILQ_FOREACH(m, &_gss_mechs, gm_link) { + if ((m->gm_mech.gm_flags & GM_USE_MG_CRED) == 0) + continue; + + gss_add_oid_set_member(minor_status, + m->gm_mech_oid, mechanisms); + } + } + + if (found == FALSE || min_lifetime == 0) { + gss_name_t n = (gss_name_t)name; + if (n) + gss_release_name(minor_status, &n); + gss_release_oid_set(minor_status, mechanisms); + *minor_status = 0; + if (min_lifetime == 0) + return (GSS_S_CREDENTIALS_EXPIRED); + + return (GSS_S_NO_CRED); + } + + *minor_status = 0; + if (name_ret) + *name_ret = (gss_name_t) name; + if (lifetime) + *lifetime = min_lifetime; + if (cred_usage) { + if ((usagemask & (AUSAGE|IUSAGE)) == (AUSAGE|IUSAGE)) + *cred_usage = GSS_C_BOTH; + else if (usagemask & IUSAGE) + *cred_usage = GSS_C_INITIATE; + else if (usagemask & AUSAGE) + *cred_usage = GSS_C_ACCEPT; + } + return (GSS_S_COMPLETE); +} |