2 * Copyright (c) 1997-2004 Erez Zadok
3 * Copyright (c) 1990 Jan-Simon Pendry
4 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
5 * Copyright (c) 1990 The Regents of the University of California.
8 * This code is derived from software contributed to Berkeley by
9 * Jan-Simon Pendry at Imperial College, London.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgment:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 * $Id: misc_rpc.c,v 1.4.2.6 2004/01/06 03:15:24 ezk Exp $
46 * Additions to Sun RPC.
51 #endif /* HAVE_CONFIG_H */
56 * Some systems renamed _seterr_reply to __seterr_reply (with two
57 * leading underscores)
59 #if !defined(HAVE__SETERR_REPLY) && defined(HAVE___SETERR_REPLY)
60 # define _seterr_reply __seterr_reply
61 #endif /* !defined(HAVE__SETERR_REPLY) && defined(HAVE___SETERR_REPLY) */
65 rpc_msg_init(struct rpc_msg *mp, u_long prog, u_long vers, u_long proc)
68 * Initialize the message
70 memset((voidp) mp, 0, sizeof(*mp));
72 mp->rm_direction = CALL;
73 mp->rm_call.cb_rpcvers = RPC_MSG_VERSION;
74 mp->rm_call.cb_prog = prog;
75 mp->rm_call.cb_vers = vers;
76 mp->rm_call.cb_proc = proc;
81 * Field reply to call to mountd
84 pickup_rpc_reply(voidp pkt, int len, voidp where, XDRPROC_T_TYPE where_xdr)
89 struct rpc_msg reply_msg;
92 /* memset((voidp) &err, 0, sizeof(err)); */
93 memset((voidp) &reply_msg, 0, sizeof(reply_msg));
94 memset((voidp) &reply_xdr, 0, sizeof(reply_xdr));
96 reply_msg.acpted_rply.ar_results.where = (caddr_t) where;
97 reply_msg.acpted_rply.ar_results.proc = where_xdr;
99 xdrmem_create(&reply_xdr, pkt, len, XDR_DECODE);
101 ok = xdr_replymsg(&reply_xdr, &reply_msg);
106 _seterr_reply(&reply_msg, &err);
107 if (err.re_status != RPC_SUCCESS) {
113 if (reply_msg.rm_reply.rp_stat == MSG_ACCEPTED &&
114 reply_msg.acpted_rply.ar_verf.oa_base) {
115 reply_xdr.x_op = XDR_FREE;
116 (void) xdr_opaque_auth(&reply_xdr,
117 &reply_msg.acpted_rply.ar_verf);
119 xdr_destroy(&reply_xdr);
126 make_rpc_packet(char *buf, int buflen, u_long proc, struct rpc_msg *mp, voidp arg, XDRPROC_T_TYPE arg_xdr, AUTH *auth)
131 * Never cast pointers between different integer types, it breaks badly
132 * on big-endian platforms if those types have different sizes.
134 * Cast to a local variable instead, and use that variable's address.
136 enum_t local_proc = (enum_t) proc;
138 xdrmem_create(&msg_xdr, buf, buflen, XDR_ENCODE);
141 * Basic protocol header
143 if (!xdr_callhdr(&msg_xdr, mp))
147 * Called procedure number
149 if (!xdr_enum(&msg_xdr, &local_proc))
155 if (!AUTH_MARSHALL(auth, &msg_xdr))
161 if (!(*arg_xdr) (&msg_xdr, arg))
167 len = xdr_getpos(&msg_xdr);
172 xdr_destroy(&msg_xdr);
178 /* get uid/gid from RPC credentials */
180 getcreds(struct svc_req *rp, uid_t *u, gid_t *g, SVCXPRT *nfsxprt)
182 struct authunix_parms *aup = (struct authunix_parms *) NULL;
183 #ifdef HAVE_RPC_AUTH_DES_H
184 struct authdes_cred *adp;
185 #endif /* HAVE_RPC_AUTH_DES_H */
187 switch (rp->rq_cred.oa_flavor) {
190 aup = (struct authunix_parms *) rp->rq_clntcred;
195 #ifdef HAVE_RPC_AUTH_DES_H
197 adp = (struct authdes_cred *) rp->rq_clntcred;
198 *g = INVALIDID; /* some unknown group id */
199 if (sscanf(adp->adc_fullname.name, "unix.%lu@", (u_long *) u) == 1)
202 #endif /* HAVE_RPC_AUTH_DES_H */
205 *u = *g = INVALIDID; /* just in case */
206 svcerr_weakauth(nfsxprt);
210 return 0; /* everything is ok */