xref: /illumos-gate/usr/src/uts/common/rpc/clnt_perr.c (revision dd72704bd9e794056c558153663c739e2012d721)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 /*
31  * Portions of this source code were derived from Berkeley 4.3 BSD
32  * under license from the Regents of the University of California.
33  */
34 
35 /*
36  * clnt_perror.c
37  */
38 #include <sys/types.h>
39 #include <sys/t_lock.h>
40 #include <rpc/types.h>
41 #include <rpc/auth.h>
42 #include <rpc/clnt.h>
43 #include <sys/systm.h>
44 #include <sys/cmn_err.h>
45 #include <sys/inttypes.h>
46 
47 /*
48  * Return an ascii string which matches the RPC clnt stat passed in.
49  */
50 const char *
51 clnt_sperrno(const enum clnt_stat stat)
52 {
53 	switch (stat) {
54 	case RPC_SUCCESS:
55 		return ("RPC: Success");
56 	case RPC_CANTENCODEARGS:
57 		return ("RPC: Can't encode arguments");
58 	case RPC_CANTDECODERES:
59 		return ("RPC: Can't decode result");
60 	case RPC_CANTSEND:
61 		return ("RPC: Unable to send");
62 	case RPC_CANTRECV:
63 		return ("RPC: Unable to receive");
64 	case RPC_TIMEDOUT:
65 		return ("RPC: Timed out");
66 	case RPC_INTR:
67 		return ("RPC: Interrupted");
68 	case RPC_UDERROR:
69 		return ("RPC: Unitdata error");
70 	case RPC_VERSMISMATCH:
71 		return ("RPC: Incompatible versions of RPC");
72 	case RPC_AUTHERROR:
73 		return ("RPC: Authentication error");
74 	case RPC_PROGUNAVAIL:
75 		return ("RPC: Program unavailable");
76 	case RPC_PROGVERSMISMATCH:
77 		return ("RPC: Program/version mismatch");
78 	case RPC_PROCUNAVAIL:
79 		return ("RPC: Procedure unavailable");
80 	case RPC_CANTDECODEARGS:
81 		return ("RPC: Server can't decode arguments");
82 	case RPC_SYSTEMERROR:
83 		return ("RPC: Remote system error");
84 	case RPC_UNKNOWNHOST:
85 		return ("RPC: Unknown host");
86 	case RPC_UNKNOWNPROTO:
87 		return ("RPC: Unknown protocol");
88 	case RPC_UNKNOWNADDR:
89 		return ("RPC: Remote address unknown");
90 	case RPC_NOBROADCAST:
91 		return ("RPC: Broadcasting not supported");
92 	case RPC_PMAPFAILURE:
93 		return ("RPC: Port mapper failure");
94 	case RPC_PROGNOTREGISTERED:
95 		return ("RPC: Program not registered");
96 	case RPC_N2AXLATEFAILURE:
97 		return ("RPC: Name to address translation failed");
98 	case RPC_TLIERROR:
99 		return ("RPC: TLI error");
100 	case RPC_FAILED:
101 		return ("RPC: Failed (unspecified error)");
102 	case RPC_INPROGRESS:
103 		return ("RPC: Operation in progress");
104 	case RPC_STALERACHANDLE:
105 		return ("RPC: Stale RAC handle");
106 	case RPC_CANTCONNECT:
107 		return ("RPC: Couldn't make connection");
108 	case RPC_XPRTFAILED:
109 		return ("RPC: Received disconnect from remote");
110 	case RPC_CANTCREATESTREAM:
111 		return ("RPC: Can't push RPC module");
112 	case RPC_CANTSTORE:
113 		return ("RPC: Can't store pending message");
114 	}
115 	return ("RPC: (unknown error code)");
116 }
117 
118 /*
119  * Return string reply error info. For use after clnt_call().
120  * It allocates the  buffer of size MAXPATHLEN and assumes
121  * caller's responsibility to free the memory after use.
122  */
123 char *
124 clnt_sperror(const CLIENT *cl, const char *s)
125 {
126 	struct rpc_err e;
127 #ifdef notyet
128 	char *err;
129 #endif
130 	char *str;
131 	char *strstart;
132 
133 	str = kmem_alloc(MAXPATHLEN, KM_SLEEP);
134 	strstart = str;
135 
136 	CLNT_GETERR((CLIENT *) cl, &e);
137 
138 	(void) sprintf(str, "%s: ", s);
139 	str += strlen(str);
140 
141 	(void) strcpy(str, clnt_sperrno(e.re_status));
142 	str += strlen(str);
143 
144 	switch (e.re_status) {
145 	case RPC_SUCCESS:
146 	case RPC_CANTENCODEARGS:
147 	case RPC_CANTDECODERES:
148 	case RPC_TIMEDOUT:
149 	case RPC_PROGUNAVAIL:
150 	case RPC_PROCUNAVAIL:
151 	case RPC_CANTDECODEARGS:
152 	case RPC_SYSTEMERROR:
153 	case RPC_UNKNOWNHOST:
154 	case RPC_UNKNOWNPROTO:
155 	case RPC_UNKNOWNADDR:
156 	case RPC_NOBROADCAST:
157 	case RPC_RPCBFAILURE:
158 	case RPC_PROGNOTREGISTERED:
159 	case RPC_FAILED:
160 	case RPC_INPROGRESS:
161 		break;
162 
163 #ifdef notyet
164 	case RPC_N2AXLATEFAILURE:
165 		(void) sprintf(str, "; %s", netdir_sperror());
166 		break;
167 #endif
168 
169 	case RPC_TLIERROR:
170 #ifdef notyet
171 		(void) sprintf(str, "; %s", t_errlist[e.re_terrno]);
172 #else
173 		(void) sprintf(str, "; %d", e.re_terrno);
174 #endif
175 		str += strlen(str);
176 		if (e.re_errno) {
177 #ifdef notyet
178 			(void) sprintf(str, "; %s", strerror(e.re_errno));
179 #else
180 			(void) sprintf(str, "; %d", e.re_errno);
181 #endif
182 		}
183 		break;
184 
185 	case RPC_CANTSEND:
186 	case RPC_CANTRECV:
187 		if (e.re_errno) {
188 #ifdef notyet
189 			(void) sprintf(str, "; errno = %s",
190 			    strerror(e.re_errno));
191 #else
192 			(void) sprintf(str, "; errno = %d", e.re_errno);
193 #endif
194 			str += strlen(str);
195 		}
196 		if (e.re_terrno) {
197 #ifdef notyet
198 			(void) sprintf(str, "; %s", t_errlist[e.re_terrno]);
199 #else
200 			(void) sprintf(str, "; %d", e.re_terrno);
201 #endif
202 		}
203 		break;
204 
205 	case RPC_VERSMISMATCH:
206 		(void) sprintf(str,
207 		    "; low version = %" PRIu32 ", high version = %" PRIu32,
208 		    e.re_vers.low, e.re_vers.high);
209 		break;
210 
211 #ifdef notyet
212 	case RPC_AUTHERROR:
213 		err = auth_errmsg(e.re_why);
214 		(void) sprintf(str, "; why = ");
215 		str += strlen(str);
216 		if (err != NULL) {
217 			(void) sprintf(str, "%s", err);
218 		} else {
219 			(void) sprintf(str,
220 			    "(unknown authentication error - %d)",
221 			    (int)e.re_why);
222 		}
223 		break;
224 #endif
225 
226 	case RPC_PROGVERSMISMATCH:
227 		(void) sprintf(str,
228 		    "; low version = %" PRIu32 ", high version = %" PRIu32,
229 		    e.re_vers.low, e.re_vers.high);
230 		break;
231 
232 	default:	/* unknown */
233 		(void) sprintf(str, "; s1 = %" PRIu32 ", s2 = %" PRIu32,
234 		    e.re_lb.s1, e.re_lb.s2);
235 		break;
236 	}
237 	return (strstart);
238 }
239