2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
25 * Sun Microsystems, Inc.
27 * Mountain View, California 94043
32 * Handles UNIX flavor authentication parameters on the service side of rpc.
33 * There are two svc auth implementations here: AUTH_UNIX and AUTH_SHORT.
34 * _svcauth_unix does full blown unix style uid,gid+gids auth,
35 * _svcauth_short uses a shorthand auth to index into a cache of longhand auths.
36 * Note: the shorthand has been gutted for efficiency.
38 * Copyright (C) 1984, Sun Microsystems, Inc.
49 /* Experimentally off - libc_hidden_proto(memcpy) */
50 /* libc_hidden_proto(printf) */
51 /* libc_hidden_proto(xdrmem_create) */
52 /* libc_hidden_proto(xdr_authunix_parms) */
55 * Unix longhand authenticator
58 _svcauth_unix (struct svc_req *rqst, struct rpc_msg *msg) attribute_hidden;
60 _svcauth_unix (struct svc_req *rqst, struct rpc_msg *msg)
64 struct authunix_parms *aup;
68 struct authunix_parms area_aup;
69 char area_machname[MAX_MACHINE_NAME + 1];
70 gid_t area_gids[NGRPS];
74 u_int str_len, gid_len;
77 area = (struct area *) rqst->rq_clntcred;
78 aup = &area->area_aup;
79 aup->aup_machname = area->area_machname;
80 aup->aup_gids = area->area_gids;
81 auth_len = (u_int) msg->rm_call.cb_cred.oa_length;
82 xdrmem_create (&xdrs, msg->rm_call.cb_cred.oa_base, auth_len, XDR_DECODE);
83 buf = XDR_INLINE (&xdrs, auth_len);
86 aup->aup_time = IXDR_GET_LONG (buf);
87 str_len = IXDR_GET_U_INT32 (buf);
88 if (str_len > MAX_MACHINE_NAME)
93 memcpy (aup->aup_machname, (caddr_t) buf, (u_int) str_len);
94 aup->aup_machname[str_len] = 0;
95 str_len = RNDUP (str_len);
96 buf = (int32_t *) ((char *) buf + str_len);
97 aup->aup_uid = IXDR_GET_LONG (buf);
98 aup->aup_gid = IXDR_GET_LONG (buf);
99 gid_len = IXDR_GET_U_INT32 (buf);
105 aup->aup_len = gid_len;
106 for (i = 0; i < gid_len; i++)
108 aup->aup_gids[i] = IXDR_GET_LONG (buf);
111 * five is the smallest unix credentials structure -
112 * timestamp, hostname len (0), uid, gid, and gids len (0).
114 if ((5 + gid_len) * BYTES_PER_XDR_UNIT + str_len > auth_len)
116 (void) printf ("bad auth_len gid %d str %d auth %d\n",
117 gid_len, str_len, auth_len);
122 else if (!xdr_authunix_parms (&xdrs, aup))
124 xdrs.x_op = XDR_FREE;
125 (void) xdr_authunix_parms (&xdrs, aup);
130 /* get the verifier */
131 if ((u_int)msg->rm_call.cb_verf.oa_length)
133 rqst->rq_xprt->xp_verf.oa_flavor =
134 msg->rm_call.cb_verf.oa_flavor;
135 rqst->rq_xprt->xp_verf.oa_base =
136 msg->rm_call.cb_verf.oa_base;
137 rqst->rq_xprt->xp_verf.oa_length =
138 msg->rm_call.cb_verf.oa_length;
142 rqst->rq_xprt->xp_verf.oa_flavor = AUTH_NULL;
143 rqst->rq_xprt->xp_verf.oa_length = 0;
153 * Shorthand unix authenticator
154 * Looks up longhand in a cache.
158 _svcauth_short (struct svc_req *rqst attribute_unused, struct rpc_msg *msg attribute_unused) attribute_hidden;
160 _svcauth_short (struct svc_req *rqst attribute_unused, struct rpc_msg *msg attribute_unused)
162 return AUTH_REJECTEDCRED;