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Diffstat (limited to 'src/lib/rpc/svc_auth.c')
| -rw-r--r-- | src/lib/rpc/svc_auth.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/lib/rpc/svc_auth.c b/src/lib/rpc/svc_auth.c new file mode 100644 index 000000000000..5fedef7d759e --- /dev/null +++ b/src/lib/rpc/svc_auth.c @@ -0,0 +1,109 @@ +/* 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); +} |