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Diffstat (limited to 'REORG.TODO/sunrpc/svc_auth.c')
| -rw-r--r-- | REORG.TODO/sunrpc/svc_auth.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/REORG.TODO/sunrpc/svc_auth.c b/REORG.TODO/sunrpc/svc_auth.c new file mode 100644 index 0000000000..5bca9557e3 --- /dev/null +++ b/REORG.TODO/sunrpc/svc_auth.c @@ -0,0 +1,115 @@ +/* + * svc_auth.c, Server-side rpc authenticator interface. + * + * Copyright (c) 2010, Oracle America, Inc. + * + * 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. + */ + +#include <rpc/rpc.h> +#include <rpc/svc.h> +#include <rpc/svc_auth.h> +#include <shlib-compat.h> + +/* + * svcauthsw is the bdevsw of server side authentication. + * + * 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 enum auth_stat _svcauth_null (struct svc_req *, struct rpc_msg *); + /* no authentication */ +extern enum auth_stat _svcauth_unix (struct svc_req *, struct rpc_msg *); + /* unix style (uid, gids) */ +extern enum auth_stat _svcauth_short (struct svc_req *, struct rpc_msg *); + /* short hand unix style */ +extern enum auth_stat _svcauth_des (struct svc_req *, struct rpc_msg *); + /* des style */ + +static const struct + { + enum auth_stat (*authenticator) (struct svc_req *, struct rpc_msg *); + } +svcauthsw[] = +{ + { _svcauth_null }, /* AUTH_NULL */ + { _svcauth_unix }, /* AUTH_UNIX */ + { _svcauth_short }, /* AUTH_SHORT */ + { _svcauth_des } /* AUTH_DES */ +}; +#define AUTH_MAX 3 /* HIGHEST AUTH NUMBER */ + + +/* + * 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-allocated; + * 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. + * + * There is an assumption that any flavour less than AUTH_NULL is + * invalid. + */ +enum auth_stat +_authenticate (register struct svc_req *rqst, struct rpc_msg *msg) +{ + register int cred_flavor; + + rqst->rq_cred = msg->rm_call.cb_cred; + rqst->rq_xprt->xp_verf.oa_flavor = _null_auth.oa_flavor; + rqst->rq_xprt->xp_verf.oa_length = 0; + cred_flavor = rqst->rq_cred.oa_flavor; + if ((cred_flavor <= AUTH_MAX) && (cred_flavor >= AUTH_NULL)) + return (*(svcauthsw[cred_flavor].authenticator)) (rqst, msg); + + return AUTH_REJECTEDCRED; +} +libc_hidden_nolink_sunrpc (_authenticate, GLIBC_2_1) + +static enum auth_stat +_svcauth_null (struct svc_req *rqst, struct rpc_msg *msg) +{ + return AUTH_OK; +} |