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/* lib/rpc/svc_auth.c */
/*
* Copyright (c) 2010, Oracle America, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of the "Oracle America, Inc." nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
* HOLDER 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.
*/
/*
* svc_auth_nodes.c, Server-side rpc authenticator interface,
* *WITHOUT* DES authentication.
*/
#include <gssrpc/rpc.h>
/*
* Server side authenticators are called from authenticate by
* using the client auth struct flavor field to index into svcauthsw.
* The server auth flavors must implement a routine that looks
* like:
*
* enum auth_stat
* flavorx_auth(rqst, msg)
* register struct svc_req *rqst;
* register struct rpc_msg *msg;
*
*/
static struct svcauthsw_type {
enum_t flavor;
enum auth_stat (*authenticator)(struct svc_req *, struct rpc_msg *,
bool_t *);
} svcauthsw[] = {
{AUTH_GSSAPI, gssrpc__svcauth_gssapi}, /* AUTH_GSSAPI */
{AUTH_NONE, gssrpc__svcauth_none}, /* AUTH_NONE */
#if 0
{AUTH_GSSAPI_COMPAT, gssrpc__svcauth_gssapi}, /* AUTH_GSSAPI_COMPAT */
#endif
{AUTH_UNIX, gssrpc__svcauth_unix}, /* AUTH_UNIX */
{AUTH_SHORT, gssrpc__svcauth_short}, /* AUTH_SHORT */
{RPCSEC_GSS, gssrpc__svcauth_gss} /* RPCSEC_GSS */
};
static int svcauthnum = sizeof(svcauthsw) / sizeof(struct svcauthsw_type);
/*
* The call rpc message, msg has been obtained from the wire. The msg contains
* the raw form of credentials and verifiers. authenticate returns AUTH_OK
* if the msg is successfully authenticated. If AUTH_OK then the routine also
* does the following things:
* set rqst->rq_xprt->verf to the appropriate response verifier;
* sets rqst->rq_client_cred to the "cooked" form of the credentials.
*
* NB: rqst->rq_cxprt->verf must be pre-alloctaed;
* its length is set appropriately.
*
* The caller still owns and is responsible for msg->u.cmb.cred and
* msg->u.cmb.verf. The authentication system retains ownership of
* rqst->rq_client_cred, the cooked credentials.
*/
enum auth_stat
gssrpc__authenticate(
register struct svc_req *rqst,
struct rpc_msg *msg,
bool_t *no_dispatch)
{
register int cred_flavor, i;
rqst->rq_cred = msg->rm_call.cb_cred;
rqst->rq_xprt->xp_verf.oa_flavor = gssrpc__null_auth.oa_flavor;
rqst->rq_xprt->xp_verf.oa_length = 0;
cred_flavor = rqst->rq_cred.oa_flavor;
*no_dispatch = FALSE;
for (i = 0; i < svcauthnum; i++) {
if (cred_flavor == svcauthsw[i].flavor &&
svcauthsw[i].authenticator != NULL) {
return ((*(svcauthsw[i].authenticator))(rqst,
msg,
no_dispatch));
}
}
return (AUTH_REJECTEDCRED);
}
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