036a80cdf7
There is no "version 2" of the "Lesser" General Public License. It is either "GPL version 2.0" or "Lesser GPL version 2.1". This patch replaces all occurrences of "Lesser GPL version 2" with "Lesser GPL version 2.1" in comment section. Signed-off-by: Chetan Pant <chetan4windows@gmail.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
148 lines
3.7 KiB
C
148 lines
3.7 KiB
C
/*
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* QEMU PAM authorization driver
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*
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* Copyright (c) 2018 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "qemu/osdep.h"
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#include "authz/pamacct.h"
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#include "trace.h"
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#include "qemu/module.h"
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#include "qom/object_interfaces.h"
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#include <security/pam_appl.h>
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static bool qauthz_pam_is_allowed(QAuthZ *authz,
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const char *identity,
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Error **errp)
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{
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QAuthZPAM *pauthz = QAUTHZ_PAM(authz);
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const struct pam_conv pam_conversation = { 0 };
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pam_handle_t *pamh = NULL;
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int ret;
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trace_qauthz_pam_check(authz, identity, pauthz->service);
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ret = pam_start(pauthz->service,
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identity,
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&pam_conversation,
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&pamh);
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if (ret != PAM_SUCCESS) {
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error_setg(errp, "Unable to start PAM transaction: %s",
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pam_strerror(NULL, ret));
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return false;
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}
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ret = pam_acct_mgmt(pamh, PAM_SILENT);
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pam_end(pamh, ret);
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if (ret != PAM_SUCCESS) {
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error_setg(errp, "Unable to authorize user '%s': %s",
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identity, pam_strerror(pamh, ret));
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return false;
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}
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return true;
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}
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static void
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qauthz_pam_prop_set_service(Object *obj,
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const char *service,
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Error **errp G_GNUC_UNUSED)
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{
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QAuthZPAM *pauthz = QAUTHZ_PAM(obj);
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g_free(pauthz->service);
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pauthz->service = g_strdup(service);
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}
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static char *
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qauthz_pam_prop_get_service(Object *obj,
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Error **errp G_GNUC_UNUSED)
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{
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QAuthZPAM *pauthz = QAUTHZ_PAM(obj);
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return g_strdup(pauthz->service);
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}
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static void
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qauthz_pam_complete(UserCreatable *uc, Error **errp)
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{
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}
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static void
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qauthz_pam_finalize(Object *obj)
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{
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QAuthZPAM *pauthz = QAUTHZ_PAM(obj);
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g_free(pauthz->service);
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}
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static void
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qauthz_pam_class_init(ObjectClass *oc, void *data)
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{
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UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
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QAuthZClass *authz = QAUTHZ_CLASS(oc);
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ucc->complete = qauthz_pam_complete;
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authz->is_allowed = qauthz_pam_is_allowed;
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object_class_property_add_str(oc, "service",
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qauthz_pam_prop_get_service,
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qauthz_pam_prop_set_service);
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}
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QAuthZPAM *qauthz_pam_new(const char *id,
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const char *service,
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Error **errp)
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{
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return QAUTHZ_PAM(
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object_new_with_props(TYPE_QAUTHZ_PAM,
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object_get_objects_root(),
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id, errp,
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"service", service,
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NULL));
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}
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static const TypeInfo qauthz_pam_info = {
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.parent = TYPE_QAUTHZ,
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.name = TYPE_QAUTHZ_PAM,
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.instance_size = sizeof(QAuthZPAM),
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.instance_finalize = qauthz_pam_finalize,
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.class_init = qauthz_pam_class_init,
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.interfaces = (InterfaceInfo[]) {
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{ TYPE_USER_CREATABLE },
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{ }
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}
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};
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static void
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qauthz_pam_register_types(void)
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{
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type_register_static(&qauthz_pam_info);
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}
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type_init(qauthz_pam_register_types);
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