[4721cf1] | 1 | |
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| 2 | #if !defined(lint) && defined(SCCSIDS) |
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| 3 | static char sccsid[] = "@(#)svc_auth.c 2.1 88/08/07 4.0 RPCSRC; from 1.19 87/08/11 Copyr 1984 Sun Micro"; |
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| 4 | #endif |
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| 5 | /* |
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| 6 | * Sun RPC is a product of Sun Microsystems, Inc. and is provided for |
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| 7 | * unrestricted use provided that this legend is included on all tape |
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| 8 | * media and as a part of the software program in whole or part. Users |
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| 9 | * may copy or modify Sun RPC without charge, but are not authorized |
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| 10 | * to license or distribute it to anyone else except as part of a product or |
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| 11 | * program developed by the user. |
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| 12 | * |
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| 13 | * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE |
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| 14 | * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR |
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| 15 | * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. |
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| 16 | * |
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| 17 | * Sun RPC is provided with no support and without any obligation on the |
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| 18 | * part of Sun Microsystems, Inc. to assist in its use, correction, |
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| 19 | * modification or enhancement. |
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| 20 | * |
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| 21 | * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE |
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| 22 | * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC |
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| 23 | * OR ANY PART THEREOF. |
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| 24 | * |
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| 25 | * In no event will Sun Microsystems, Inc. be liable for any lost revenue |
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| 26 | * or profits or other special, indirect and consequential damages, even if |
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| 27 | * Sun has been advised of the possibility of such damages. |
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| 28 | * |
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| 29 | * Sun Microsystems, Inc. |
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| 30 | * 2550 Garcia Avenue |
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| 31 | * Mountain View, California 94043 |
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| 32 | */ |
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| 33 | |
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| 34 | /* |
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| 35 | * svc_auth_nodes.c, Server-side rpc authenticator interface, |
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| 36 | * *WITHOUT* DES authentication. |
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| 37 | * |
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| 38 | * Copyright (C) 1984, Sun Microsystems, Inc. |
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| 39 | */ |
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| 40 | |
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| 41 | #include <rpc/rpc.h> |
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| 42 | |
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| 43 | /* |
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| 44 | * svcauthsw is the bdevsw of server side authentication. |
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| 45 | * |
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| 46 | * Server side authenticators are called from authenticate by |
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| 47 | * using the client auth struct flavor field to index into svcauthsw. |
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| 48 | * The server auth flavors must implement a routine that looks |
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| 49 | * like: |
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| 50 | * |
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| 51 | * enum auth_stat |
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| 52 | * flavorx_auth(rqst, msg) |
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| 53 | * register struct svc_req *rqst; |
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| 54 | * register struct rpc_msg *msg; |
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| 55 | * |
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| 56 | */ |
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| 57 | |
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| 58 | enum auth_stat _svcauth_null(); /* no authentication */ |
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| 59 | enum auth_stat _svcauth_unix(); /* unix style (uid, gids) */ |
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| 60 | enum auth_stat _svcauth_short(); /* short hand unix style */ |
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| 61 | |
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| 62 | static struct { |
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| 63 | enum auth_stat (*authenticator)(); |
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| 64 | } svcauthsw[] = { |
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[f470989] | 65 | { |
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[4721cf1] | 66 | _svcauth_null, /* AUTH_NULL */ |
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| 67 | #ifdef MR |
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| 68 | _svcauth_unix, /* AUTH_UNIX */ |
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| 69 | _svcauth_short /* AUTH_SHORT */ |
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| 70 | #endif |
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[f470989] | 71 | } |
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[4721cf1] | 72 | }; |
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| 73 | |
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| 74 | #ifdef MR |
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| 75 | #define AUTH_MAX 2 /* HIGHEST AUTH NUMBER */ |
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| 76 | #else |
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| 77 | #define AUTH_MAX 0 /* HIGHEST AUTH NUMBER */ |
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| 78 | #endif |
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| 79 | |
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| 80 | |
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| 81 | /* |
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| 82 | * The call rpc message, msg has been obtained from the wire. The msg contains |
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| 83 | * the raw form of credentials and verifiers. authenticate returns AUTH_OK |
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| 84 | * if the msg is successfully authenticated. If AUTH_OK then the routine also |
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| 85 | * does the following things: |
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| 86 | * set rqst->rq_xprt->verf to the appropriate response verifier; |
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| 87 | * sets rqst->rq_client_cred to the "cooked" form of the credentials. |
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| 88 | * |
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| 89 | * NB: rqst->rq_cxprt->verf must be pre-alloctaed; |
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| 90 | * its length is set appropriately. |
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| 91 | * |
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| 92 | * The caller still owns and is responsible for msg->u.cmb.cred and |
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| 93 | * msg->u.cmb.verf. The authentication system retains ownership of |
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| 94 | * rqst->rq_client_cred, the cooked credentials. |
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| 95 | * |
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| 96 | * There is an assumption that any flavour less than AUTH_NULL is |
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| 97 | * invalid. |
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| 98 | */ |
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| 99 | enum auth_stat |
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| 100 | _authenticate(rqst, msg) |
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| 101 | register struct svc_req *rqst; |
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| 102 | struct rpc_msg *msg; |
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| 103 | { |
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| 104 | register int cred_flavor; |
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| 105 | |
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| 106 | rqst->rq_cred = msg->rm_call.cb_cred; |
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| 107 | rqst->rq_xprt->xp_verf.oa_flavor = _null_auth.oa_flavor; |
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| 108 | rqst->rq_xprt->xp_verf.oa_length = 0; |
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| 109 | cred_flavor = rqst->rq_cred.oa_flavor; |
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| 110 | if ((cred_flavor <= AUTH_MAX) && (cred_flavor >= AUTH_NULL)) { |
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| 111 | return ((*(svcauthsw[cred_flavor].authenticator))(rqst, msg)); |
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| 112 | } |
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| 113 | |
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| 114 | return (AUTH_REJECTEDCRED); |
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| 115 | } |
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| 116 | |
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| 117 | enum auth_stat |
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| 118 | _svcauth_null(/*rqst, msg*/) |
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| 119 | /*struct svc_req *rqst; |
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| 120 | struct rpc_msg *msg;*/ |
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| 121 | { |
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| 122 | |
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| 123 | return (AUTH_OK); |
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| 124 | } |
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