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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright (c) 2011 Bayard G. Bell. All rights reserved.
*
* A module for Kerberos V5 security mechanism.
*
*/
#include <sys/types.h>
#include <sys/modctl.h>
#include <sys/errno.h>
#include <mechglueP.h>
#include <gssapiP_krb5.h>
#include <gssapi_err_generic.h>
#include <gssapi/kgssapi_defs.h>
#include <sys/debug.h>
#include <k5-int.h>
/* mechglue wrappers */
static OM_uint32 k5glue_delete_sec_context
(void *, OM_uint32 *, /* minor_status */
gss_ctx_id_t *, /* context_handle */
gss_buffer_t, /* output_token */
OM_uint32);
static OM_uint32 k5glue_sign
(void *, OM_uint32 *, /* minor_status */
gss_ctx_id_t, /* context_handle */
int, /* qop_req */
gss_buffer_t, /* message_buffer */
gss_buffer_t, /* message_token */
OM_uint32);
static OM_uint32 k5glue_verify
(void *, OM_uint32 *, /* minor_status */
gss_ctx_id_t, /* context_handle */
gss_buffer_t, /* message_buffer */
gss_buffer_t, /* token_buffer */
int *, /* qop_state */
OM_uint32);
/* EXPORT DELETE START */
static OM_uint32 k5glue_seal
(void *, OM_uint32 *, /* minor_status */
gss_ctx_id_t, /* context_handle */
int, /* conf_req_flag */
int, /* qop_req */
gss_buffer_t, /* input_message_buffer */
int *, /* conf_state */
gss_buffer_t, /* output_message_buffer */
OM_uint32);
static OM_uint32 k5glue_unseal
(void *, OM_uint32 *, /* minor_status */
gss_ctx_id_t, /* context_handle */
gss_buffer_t, /* input_message_buffer */
gss_buffer_t, /* output_message_buffer */
int *, /* conf_state */
int *, /* qop_state */
OM_uint32);
/* EXPORT DELETE END */
static OM_uint32 k5glue_import_sec_context
(void *, OM_uint32 *, /* minor_status */
gss_buffer_t, /* interprocess_token */
gss_ctx_id_t *); /* context_handle */
static struct gss_config krb5_mechanism =
{{9, "\052\206\110\206\367\022\001\002\002"},
NULL, /* context */
NULL, /* next */
TRUE, /* uses_kmod */
/* EXPORT DELETE START */ /* CRYPT DELETE START */
k5glue_unseal,
/* EXPORT DELETE END */ /* CRYPT DELETE END */
k5glue_delete_sec_context,
/* EXPORT DELETE START */ /* CRYPT DELETE START */
k5glue_seal,
/* EXPORT DELETE END */ /* CRYPT DELETE END */
k5glue_import_sec_context,
/* EXPORT DELETE START */
/* CRYPT DELETE START */
#if 0
/* CRYPT DELETE END */
k5glue_seal,
k5glue_unseal,
/* CRYPT DELETE START */
#endif
/* CRYPT DELETE END */
/* EXPORT DELETE END */
k5glue_sign,
k5glue_verify,
};
static gss_mechanism
gss_mech_initialize()
{
return (&krb5_mechanism);
}
/*
* Module linkage information for the kernel.
*/
extern struct mod_ops mod_miscops;
static struct modlmisc modlmisc = {
&mod_miscops, "Krb5 GSS mechanism"
};
static struct modlinkage modlinkage = {
MODREV_1,
(void *)&modlmisc,
NULL
};
static int krb5_fini_code = EBUSY;
int
_init()
{
int retval;
gss_mechanism mech, tmp;
if ((retval = mod_install(&modlinkage)) != 0)
return (retval);
mech = gss_mech_initialize();
mutex_enter(&__kgss_mech_lock);
tmp = __kgss_get_mechanism(&mech->mech_type);
if (tmp != NULL) {
KRB5_LOG0(KRB5_INFO,
"KRB5 GSS mechanism: mechanism already in table.\n");
if (tmp->uses_kmod == TRUE) {
KRB5_LOG0(KRB5_INFO, "KRB5 GSS mechanism: mechanism "
"table supports kernel operations!\n");
}
/*
* keep us loaded, but let us be unloadable. This
* will give the developer time to trouble shoot
*/
krb5_fini_code = 0;
} else {
__kgss_add_mechanism(mech);
ASSERT(__kgss_get_mechanism(&mech->mech_type) == mech);
}
mutex_exit(&__kgss_mech_lock);
return (0);
}
int
_fini()
{
int ret = krb5_fini_code;
if (ret == 0) {
ret = (mod_remove(&modlinkage));
}
return (ret);
}
int
_info(struct modinfo *modinfop)
{
return (mod_info(&modlinkage, modinfop));
}
/* ARGSUSED */
static OM_uint32
k5glue_delete_sec_context(ctx, minor_status, context_handle, output_token,
gssd_ctx_verifier)
void *ctx;
OM_uint32 *minor_status;
gss_ctx_id_t *context_handle;
gss_buffer_t output_token;
OM_uint32 gssd_ctx_verifier;
{
return (krb5_gss_delete_sec_context(minor_status,
context_handle, output_token,
gssd_ctx_verifier));
}
/* V2 */
/* ARGSUSED */
static OM_uint32
k5glue_import_sec_context(ctx, minor_status, interprocess_token, context_handle)
void *ctx;
OM_uint32 *minor_status;
gss_buffer_t interprocess_token;
gss_ctx_id_t *context_handle;
{
return (krb5_gss_import_sec_context(minor_status,
interprocess_token,
context_handle));
}
/* EXPORT DELETE START */
/* V1 only */
/* ARGSUSED */
static OM_uint32
k5glue_seal(ctx, minor_status, context_handle, conf_req_flag, qop_req,
input_message_buffer, conf_state, output_message_buffer,
gssd_ctx_verifier)
void *ctx;
OM_uint32 *minor_status;
gss_ctx_id_t context_handle;
int conf_req_flag;
int qop_req;
gss_buffer_t input_message_buffer;
int *conf_state;
gss_buffer_t output_message_buffer;
OM_uint32 gssd_ctx_verifier;
{
return (krb5_gss_seal(minor_status, context_handle,
conf_req_flag, qop_req, input_message_buffer,
conf_state, output_message_buffer, gssd_ctx_verifier));
}
/* EXPORT DELETE END */
/* ARGSUSED */
static OM_uint32
k5glue_sign(ctx, minor_status, context_handle,
qop_req, message_buffer,
message_token, gssd_ctx_verifier)
void *ctx;
OM_uint32 *minor_status;
gss_ctx_id_t context_handle;
int qop_req;
gss_buffer_t message_buffer;
gss_buffer_t message_token;
OM_uint32 gssd_ctx_verifier;
{
return (krb5_gss_sign(minor_status, context_handle,
qop_req, message_buffer, message_token, gssd_ctx_verifier));
}
/* EXPORT DELETE START */
/* ARGSUSED */
static OM_uint32
k5glue_unseal(ctx, minor_status, context_handle, input_message_buffer,
output_message_buffer, conf_state, qop_state, gssd_ctx_verifier)
void *ctx;
OM_uint32 *minor_status;
gss_ctx_id_t context_handle;
gss_buffer_t input_message_buffer;
gss_buffer_t output_message_buffer;
int *conf_state;
int *qop_state;
OM_uint32 gssd_ctx_verifier;
{
return (krb5_gss_unseal(minor_status, context_handle,
input_message_buffer, output_message_buffer,
conf_state, qop_state, gssd_ctx_verifier));
}
/* EXPORT DELETE END */
/* V1 only */
/* ARGSUSED */
static OM_uint32
k5glue_verify(ctx, minor_status, context_handle, message_buffer,
token_buffer, qop_state, gssd_ctx_verifier)
void *ctx;
OM_uint32 *minor_status;
gss_ctx_id_t context_handle;
gss_buffer_t message_buffer;
gss_buffer_t token_buffer;
int *qop_state;
OM_uint32 gssd_ctx_verifier;
{
return (krb5_gss_verify(minor_status,
context_handle,
message_buffer,
token_buffer,
qop_state, gssd_ctx_verifier));
}
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