pmap_rmt.c revision 1.33.2.1
1 /* $NetBSD: pmap_rmt.c,v 1.33.2.1 2013/06/23 06:21:05 tls Exp $ */ 2 3 /* 4 * Copyright (c) 2010, Oracle America, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following 14 * disclaimer in the documentation and/or other materials 15 * provided with the distribution. 16 * * Neither the name of the "Oracle America, Inc." nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 #if defined(LIBC_SCCS) && !defined(lint) 36 #if 0 37 static char *sccsid = "@(#)pmap_rmt.c 1.21 87/08/27 Copyr 1984 Sun Micro"; 38 static char *sccsid = "@(#)pmap_rmt.c 2.2 88/08/01 4.0 RPCSRC"; 39 #else 40 __RCSID("$NetBSD: pmap_rmt.c,v 1.33.2.1 2013/06/23 06:21:05 tls Exp $"); 41 #endif 42 #endif 43 44 /* 45 * pmap_rmt.c 46 * Client interface to pmap rpc service. 47 * remote call and broadcast service 48 * 49 * Copyright (C) 1984, Sun Microsystems, Inc. 50 */ 51 52 #include "namespace.h" 53 54 #include <sys/types.h> 55 #include <sys/ioctl.h> 56 #include <sys/poll.h> 57 #include <sys/socket.h> 58 59 #include <net/if.h> 60 #include <netinet/in.h> 61 #include <arpa/inet.h> 62 63 #include <assert.h> 64 #include <err.h> 65 #include <errno.h> 66 #include <stdio.h> 67 #include <string.h> 68 #include <unistd.h> 69 70 #include <rpc/rpc.h> 71 #include <rpc/pmap_prot.h> 72 #include <rpc/pmap_clnt.h> 73 #include <rpc/pmap_rmt.h> 74 75 #ifdef __weak_alias 76 __weak_alias(xdr_rmtcall_args,_xdr_rmtcall_args) 77 __weak_alias(xdr_rmtcallres,_xdr_rmtcallres) 78 #endif 79 80 static const struct timeval timeout = { 3, 0 }; 81 82 /* 83 * pmapper remote-call-service interface. 84 * This routine is used to call the pmapper remote call service 85 * which will look up a service program in the port maps, and then 86 * remotely call that routine with the given parameters. This allows 87 * programs to do a lookup and call in one step. 88 */ 89 enum clnt_stat 90 pmap_rmtcall(struct sockaddr_in *addr, u_long prog, u_long vers, u_long proc, 91 xdrproc_t xdrargs, caddr_t argsp, xdrproc_t xdrres, caddr_t resp, 92 struct timeval tout, u_long *port_ptr) 93 { 94 int sock = -1; 95 CLIENT *client; 96 struct rmtcallargs a; 97 struct rmtcallres r; 98 enum clnt_stat stat; 99 100 _DIAGASSERT(addr != NULL); 101 _DIAGASSERT(port_ptr != NULL); 102 103 addr->sin_port = htons(PMAPPORT); 104 client = clntudp_create(addr, PMAPPROG, PMAPVERS, timeout, &sock); 105 if (client != NULL) { 106 a.prog = prog; 107 a.vers = vers; 108 a.proc = proc; 109 a.args_ptr = argsp; 110 a.xdr_args = xdrargs; 111 r.port_ptr = port_ptr; 112 r.results_ptr = resp; 113 r.xdr_results = xdrres; 114 stat = CLNT_CALL(client, (rpcproc_t)PMAPPROC_CALLIT, 115 (xdrproc_t)xdr_rmtcall_args, &a, (xdrproc_t)xdr_rmtcallres, 116 &r, tout); 117 CLNT_DESTROY(client); 118 } else { 119 stat = RPC_FAILED; 120 } 121 addr->sin_port = 0; 122 return (stat); 123 } 124 125 126 /* 127 * XDR remote call arguments 128 * written for XDR_ENCODE direction only 129 */ 130 bool_t 131 xdr_rmtcall_args(XDR *xdrs, struct rmtcallargs *cap) 132 { 133 u_int lenposition, argposition, position; 134 135 _DIAGASSERT(xdrs != NULL); 136 _DIAGASSERT(cap != NULL); 137 138 if (xdr_u_long(xdrs, &(cap->prog)) && 139 xdr_u_long(xdrs, &(cap->vers)) && 140 xdr_u_long(xdrs, &(cap->proc))) { 141 lenposition = XDR_GETPOS(xdrs); 142 if (! xdr_u_long(xdrs, &(cap->arglen))) 143 return (FALSE); 144 argposition = XDR_GETPOS(xdrs); 145 if (! (*(cap->xdr_args))(xdrs, cap->args_ptr)) 146 return (FALSE); 147 position = XDR_GETPOS(xdrs); 148 cap->arglen = (u_long)position - (u_long)argposition; 149 XDR_SETPOS(xdrs, lenposition); 150 if (! xdr_u_long(xdrs, &(cap->arglen))) 151 return (FALSE); 152 XDR_SETPOS(xdrs, position); 153 return (TRUE); 154 } 155 return (FALSE); 156 } 157 158 /* 159 * XDR remote call results 160 * written for XDR_DECODE direction only 161 */ 162 bool_t 163 xdr_rmtcallres(XDR *xdrs, struct rmtcallres *crp) 164 { 165 caddr_t port_ptr; 166 167 _DIAGASSERT(xdrs != NULL); 168 _DIAGASSERT(crp != NULL); 169 170 port_ptr = (caddr_t)(void *)crp->port_ptr; 171 if (xdr_reference(xdrs, &port_ptr, (u_int)sizeof(u_long), 172 (xdrproc_t)xdr_u_long) && xdr_u_long(xdrs, &crp->resultslen)) { 173 crp->port_ptr = (u_long *)(void *)port_ptr; 174 return ((*(crp->xdr_results))(xdrs, crp->results_ptr)); 175 } 176 return (FALSE); 177 } 178
Indexes created Wed Oct 15 16:09:53 GMT 2025