diff options
Diffstat (limited to 'src/lib/rpc/svc_auth.c')
| -rw-r--r-- | src/lib/rpc/svc_auth.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/lib/rpc/svc_auth.c b/src/lib/rpc/svc_auth.c new file mode 100644 index 0000000..281d7cb --- /dev/null +++ b/src/lib/rpc/svc_auth.c @@ -0,0 +1,119 @@ +#if !defined(lint) && defined(SCCSIDS) +static char sccsid[] = "@(#)svc_auth.c 2.1 88/08/07 4.0 RPCSRC; from 1.19 87/08/11 Copyr 1984 Sun Micro"; +#endif +/* + * Sun RPC is a product of Sun Microsystems, Inc. and is provided for + * unrestricted use provided that this legend is included on all tape + * media and as a part of the software program in whole or part. Users + * may copy or modify Sun RPC without charge, but are not authorized + * to license or distribute it to anyone else except as part of a product or + * program developed by the user. + * + * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE + * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun RPC is provided with no support and without any obligation on the + * part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ + +/* + * svc_auth_nodes.c, Server-side rpc authenticator interface, + * *WITHOUT* DES authentication. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/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; + * + */ + +enum auth_stat _svcauth_null(); /* no authentication */ +enum auth_stat _svcauth_unix(); /* unix style (uid, gids) */ +enum auth_stat _svcauth_short(); /* short hand unix style */ +enum auth_stat _svcauth_gssapi(); /* GSS-API style */ + +static struct svcauthsw_type { + unsigned int flavor; + enum auth_stat (*authenticator)(); +} svcauthsw[] = { + AUTH_GSSAPI, _svcauth_gssapi, /* AUTH_GSSAPI */ + AUTH_NONE, _svcauth_null, /* AUTH_NULL */ + AUTH_GSSAPI_COMPAT, _svcauth_gssapi, /* AUTH_GSSAPI_COMPAT */ + AUTH_UNIX, _svcauth_unix, /* AUTH_UNIX */ + AUTH_SHORT, _svcauth_short, /* AUTH_SHORT */ +}; +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 +_authenticate(rqst, msg, no_dispatch) + 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 = _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); +} + +enum auth_stat +_svcauth_null(rqst, msg) + struct svc_req *rqst; + struct rpc_msg *msg; +{ + rqst->rq_xprt->xp_auth = &svc_auth_any; + return (AUTH_OK); +} |