1 /*********************************************************************
2 * RPC for the Windows NT Operating System
3 * 1993 by Martin F. Gergeleit
4 * Users may use, copy or modify Sun RPC for the Windows NT Operating
5 * System according to the Sun copyright below.
7 * RPC for the Windows NT Operating System COMES WITH ABSOLUTELY NO
8 * WARRANTY, NOR WILL I BE LIABLE FOR ANY DAMAGES INCURRED FROM THE
9 * USE OF. USE ENTIRELY AT YOUR OWN RISK!!!
10 *********************************************************************/
12 /* @(#)svc_auth_unix.c 2.3 88/08/01 4.0 RPCSRC; from 1.28 88/02/08 SMI */
14 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
15 * unrestricted use provided that this legend is included on all tape
16 * media and as a part of the software program in whole or part. Users
17 * may copy or modify Sun RPC without charge, but are not authorized
18 * to license or distribute it to anyone else except as part of a product or
19 * program developed by the user.
21 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
22 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
25 * Sun RPC is provided with no support and without any obligation on the
26 * part of Sun Microsystems, Inc. to assist in its use, correction,
27 * modification or enhancement.
29 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
30 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
31 * OR ANY PART THEREOF.
33 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
34 * or profits or other special, indirect and consequential damages, even if
35 * Sun has been advised of the possibility of such damages.
37 * Sun Microsystems, Inc.
39 * Mountain View, California 94043
41 #if !defined(lint) && defined(SCCSIDS)
42 static char sccsid[] = "@(#)svc_auth_unix.c 1.28 88/02/08 Copyr 1984 Sun Micro";
47 * Handles UNIX flavor authentication parameters on the service side of rpc.
48 * There are two svc auth implementations here: AUTH_UNIX and AUTH_SHORT.
49 * _svcauth_unix does full blown unix style uid,gid+gids auth,
50 * _svcauth_short uses a shorthand auth to index into a cache of longhand auths.
51 * Note: the shorthand has been gutted for efficiency.
53 * Copyright (C) 1984, Sun Microsystems, Inc.
60 * Unix longhand authenticator
63 _svcauth_unix(rqst, msg)
64 register struct svc_req *rqst;
65 register struct rpc_msg *msg;
67 register enum auth_stat stat;
69 register struct authunix_parms *aup;
72 struct authunix_parms area_aup;
73 char area_machname[MAX_MACHINE_NAME+1];
80 area = (struct area *) rqst->rq_clntcred;
81 aup = &area->area_aup;
82 aup->aup_machname = area->area_machname;
83 aup->aup_gids = area->area_gids;
84 auth_len = (u_int)msg->rm_call.cb_cred.oa_length;
85 xdrmem_create(&xdrs, msg->rm_call.cb_cred.oa_base, auth_len,XDR_DECODE);
86 buf = XDR_INLINE(&xdrs, auth_len);
88 aup->aup_time = IXDR_GET_LONG(buf);
89 str_len = IXDR_GET_U_LONG(buf);
90 if (str_len > MAX_MACHINE_NAME) {
94 bcopy((caddr_t)buf, aup->aup_machname, (u_int)str_len);
95 aup->aup_machname[str_len] = 0;
96 str_len = RNDUP(str_len);
97 buf += str_len / sizeof (long);
98 aup->aup_uid = IXDR_GET_LONG(buf);
99 aup->aup_gid = IXDR_GET_LONG(buf);
100 gid_len = IXDR_GET_U_LONG(buf);
101 if (gid_len > NGRPS) {
105 aup->aup_len = gid_len;
106 for (i = 0; i < gid_len; i++) {
107 aup->aup_gids[i] = IXDR_GET_LONG(buf);
110 * five is the smallest unix credentials structure -
111 * timestamp, hostname len (0), uid, gid, and gids len (0).
113 if ((5 + gid_len) * BYTES_PER_XDR_UNIT + str_len > auth_len) {
116 sprintf(str, "bad auth_len gid %d str %d auth %d\n",
117 gid_len, str_len, auth_len);
120 (void) printf("bad auth_len gid %d str %d auth %d\n",
121 gid_len, str_len, auth_len);
126 } else if (! xdr_authunix_parms(&xdrs, aup)) {
127 xdrs.x_op = XDR_FREE;
128 (void)xdr_authunix_parms(&xdrs, aup);
132 rqst->rq_xprt->xp_verf.oa_flavor = AUTH_NULL;
133 rqst->rq_xprt->xp_verf.oa_length = 0;
142 * Shorthand unix authenticator
143 * Looks up longhand in a cache.
147 _svcauth_short(rqst, msg)
148 struct svc_req *rqst;
151 return (AUTH_REJECTEDCRED);