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13870d5d7b
caused by use of an invalid kgss_gssd_handle during an upcall to the gssd daemon when it has exited. This patch seems to avoid the crashes by holding a reference count on the kgss_gssd_handle until the upcall is done. It also adds a new mutex kgss_gssd_lock used to make manipulation of kgss_gssd_handle SMP safe. Tested by: Illias A. Marinos, Herbert Poeckl Reviewed by: jhb MFC after: 2 weeks
70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*-
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* Copyright (c) 2008 Isilon Inc http://www.isilon.com/
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* Authors: Doug Rabson <dfr@rabson.org>
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* Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
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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 "gssd.h"
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MALLOC_DECLARE(M_GSSAPI);
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struct _gss_ctx_id_t {
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KOBJ_FIELDS;
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gssd_ctx_id_t handle;
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};
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struct _gss_cred_id_t {
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gssd_cred_id_t handle;
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};
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struct _gss_name_t {
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gssd_name_t handle;
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};
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struct kgss_mech {
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LIST_ENTRY(kgss_mech) km_link;
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gss_OID km_mech_type;
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const char *km_mech_name;
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struct kobj_class *km_class;
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};
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LIST_HEAD(kgss_mech_list, kgss_mech);
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extern CLIENT *kgss_gssd_handle;
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extern struct mtx kgss_gssd_lock;
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extern struct kgss_mech_list kgss_mechs;
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CLIENT *kgss_gssd_client(void);
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int kgss_oid_equal(const gss_OID oid1, const gss_OID oid2);
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extern void kgss_install_mech(gss_OID mech_type, const char *name,
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struct kobj_class *cls);
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extern void kgss_uninstall_mech(gss_OID mech_type);
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extern gss_OID kgss_find_mech_by_name(const char *name);
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extern const char *kgss_find_mech_by_oid(const gss_OID oid);
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extern gss_ctx_id_t kgss_create_context(gss_OID mech_type);
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extern void kgss_delete_context(gss_ctx_id_t ctx, gss_buffer_t output_token);
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extern OM_uint32 kgss_transfer_context(gss_ctx_id_t ctx);
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extern void kgss_copy_buffer(const gss_buffer_t from, gss_buffer_t to);
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