t_rpc.c revision 313535 
1/*	$NetBSD: t_rpc.c,v 1.10 2016/08/27 14:36:22 christos Exp $	*/
2
3#include <sys/cdefs.h>
4__RCSID("$NetBSD: t_rpc.c,v 1.10 2016/08/27 14:36:22 christos Exp $");
5
6#include <sys/types.h>
7#include <sys/socket.h>
8#include <rpc/rpc.h>
9#include <stdlib.h>
10#include <string.h>
11#include <err.h>
12#include <netdb.h>
13#include <stdio.h>
14#include <errno.h>
15#include <unistd.h>
16
17#ifndef TEST
18#include <atf-c.h>
19
20#define ERRX(ev, msg, ...)	ATF_REQUIRE_MSG(0, msg, __VA_ARGS__)
21
22#define SKIPX(ev, msg, ...)	do {			\
23	atf_tc_skip(msg, __VA_ARGS__);			\
24	return ev;					\
25} while(/*CONSTCOND*/0)
26
27#ifdef __FreeBSD__
28#define SKIPXI(ev, msg, ...)	do {			\
29	atf_tc_skip(msg, __VA_ARGS__);			\
30	return ev;					\
31} while(/*CONSTCOND*/0)
32#endif
33
34#else
35#define ERRX(ev, msg, ...)	errx(EXIT_FAILURE, msg, __VA_ARGS__)
36#define SKIPX(ev, msg, ...)	errx(EXIT_FAILURE, msg, __VA_ARGS__)
37#endif
38
39#ifdef DEBUG
40#define DPRINTF(...)	printf(__VA_ARGS__)
41#else
42#define DPRINTF(...)
43#endif
44
45
46#define RPCBPROC_NULL 0
47
48/* XXX (ngie): for clarity on what needs to be reverted later. */
49#define	__FreeBSD_bug_216954__
50#ifdef	__FreeBSD_bug_216954__
51#include <signal.h>
52#endif
53
54static int
55reply(caddr_t replyp, struct netbuf * raddrp, struct netconfig * nconf)
56{
57	char host[NI_MAXHOST];
58	struct sockaddr *sock = raddrp->buf;
59	int error;
60
61
62	error = getnameinfo(sock, sock->sa_len, host, sizeof(host), NULL, 0, 0);
63	if (error)
64		warnx("Cannot resolve address (%s)", gai_strerror(error));
65	else
66		printf("response from: %s\n", host);
67	return 0;
68}
69
70#ifdef __FreeBSD__
71#define	__rpc_control	rpc_control
72#endif
73
74extern bool_t __rpc_control(int, void *);
75
76static void
77onehost(const char *host, const char *transp)
78{
79	CLIENT         *clnt;
80	struct netbuf   addr;
81	struct timeval  tv;
82
83	/*
84	 * Magic!
85	 */
86	tv.tv_sec = 0;
87	tv.tv_usec = 500000;
88#define CLCR_SET_RPCB_TIMEOUT   2
89	__rpc_control(CLCR_SET_RPCB_TIMEOUT, &tv);
90
91	if ((clnt = clnt_create(host, RPCBPROG, RPCBVERS, transp)) == NULL)
92		SKIPX(, "clnt_create (%s)", clnt_spcreateerror(""));
93
94	tv.tv_sec = 1;
95	tv.tv_usec = 0;
96#ifdef __FreeBSD__
97	if (clnt_call(clnt, RPCBPROC_NULL, (xdrproc_t)xdr_void, NULL,
98	    (xdrproc_t)xdr_void, NULL, tv)
99	    != RPC_SUCCESS)
100#else
101	if (clnt_call(clnt, RPCBPROC_NULL, xdr_void, NULL, xdr_void, NULL, tv)
102	    != RPC_SUCCESS)
103#endif
104		ERRX(, "clnt_call (%s)", clnt_sperror(clnt, ""));
105	clnt_control(clnt, CLGET_SVC_ADDR, (char *) &addr);
106	reply(NULL, &addr, NULL);
107}
108
109#define PROGNUM 0x81
110#define VERSNUM 0x01
111#define PLUSONE 1
112#define DESTROY 2
113
114static struct timeval 	tout = {1, 0};
115
116static void
117server(struct svc_req *rqstp, SVCXPRT *transp)
118{
119	int num;
120
121	DPRINTF("Starting server\n");
122
123	switch (rqstp->rq_proc) {
124	case NULLPROC:
125		if (!svc_sendreply(transp, (xdrproc_t)xdr_void, NULL))
126			ERRX(, "svc_sendreply failed %d", 0);
127		return;
128	case PLUSONE:
129		break;
130	case DESTROY:
131		if (!svc_sendreply(transp, (xdrproc_t)xdr_void, NULL))
132			ERRX(, "svc_sendreply failed %d", 0);
133		svc_destroy(transp);
134		exit(0);
135	default:
136		svcerr_noproc(transp);
137		return;
138	}
139
140	if (!svc_getargs(transp, (xdrproc_t)xdr_int, (void *)&num)) {
141		svcerr_decode(transp);
142		return;
143	}
144	DPRINTF("About to increment\n");
145	num++;
146	if (!svc_sendreply(transp, (xdrproc_t)xdr_int, (void *)&num))
147		ERRX(, "svc_sendreply failed %d", 1);
148	DPRINTF("Leaving server procedure.\n");
149}
150
151static int
152rawtest(const char *arg)
153{
154	CLIENT         *clnt;
155	SVCXPRT        *svc;
156	int 		num, resp;
157	enum clnt_stat  rv;
158
159	if (arg)
160		num = atoi(arg);
161	else
162		num = 0;
163
164	svc = svc_raw_create();
165	if (svc == NULL)
166		ERRX(EXIT_FAILURE, "Cannot create server %d", num);
167	if (!svc_reg(svc, PROGNUM, VERSNUM, server, NULL))
168		ERRX(EXIT_FAILURE, "Cannot register server %d", num);
169
170	clnt = clnt_raw_create(PROGNUM, VERSNUM);
171	if (clnt == NULL)
172		ERRX(EXIT_FAILURE, "%s",
173		    clnt_spcreateerror("clnt_raw_create"));
174	rv = clnt_call(clnt, PLUSONE, (xdrproc_t)xdr_int, (void *)&num,
175	    (xdrproc_t)xdr_int, (void *)&resp, tout);
176	if (rv != RPC_SUCCESS)
177		ERRX(EXIT_FAILURE, "clnt_call: %s", clnt_sperrno(rv));
178	DPRINTF("Got %d\n", resp);
179	clnt_destroy(clnt);
180	svc_destroy(svc);
181	if (++num != resp)
182		ERRX(EXIT_FAILURE, "expected %d got %d", num, resp);
183
184	return EXIT_SUCCESS;
185}
186
187static int
188regtest(const char *hostname, const char *transp, const char *arg, int p)
189{
190	CLIENT         *clnt;
191	int 		num, resp;
192	enum clnt_stat  rv;
193	pid_t		pid;
194
195	if (arg)
196		num = atoi(arg);
197	else
198		num = 0;
199
200#ifdef __NetBSD__
201	svc_fdset_init(p ? SVC_FDSET_POLL : 0);
202#endif
203	if (!svc_create(server, PROGNUM, VERSNUM, transp))
204	{
205		SKIPXI(EXIT_FAILURE, "Cannot create server %d", num);
206	}
207
208	switch ((pid = fork())) {
209	case 0:
210		DPRINTF("Calling svc_run\n");
211		svc_run();
212		ERRX(EXIT_FAILURE, "svc_run returned %d!", num);
213	case -1:
214		ERRX(EXIT_FAILURE, "Fork failed (%s)", strerror(errno));
215	default:
216		sleep(1);
217		break;
218	}
219
220	DPRINTF("Initializing client\n");
221	clnt = clnt_create(hostname, PROGNUM, VERSNUM, transp);
222	if (clnt == NULL)
223		ERRX(EXIT_FAILURE, "%s",
224		    clnt_spcreateerror("clnt_raw_create"));
225	rv = clnt_call(clnt, PLUSONE, (xdrproc_t)xdr_int, (void *)&num,
226	    (xdrproc_t)xdr_int, (void *)&resp, tout);
227	if (rv != RPC_SUCCESS)
228		ERRX(EXIT_FAILURE, "clnt_call: %s", clnt_sperrno(rv));
229	DPRINTF("Got %d\n", resp);
230	if (++num != resp)
231		ERRX(EXIT_FAILURE, "expected %d got %d", num, resp);
232	rv = clnt_call(clnt, DESTROY, (xdrproc_t)xdr_void, NULL,
233	    (xdrproc_t)xdr_void, NULL, tout);
234	if (rv != RPC_SUCCESS)
235		ERRX(EXIT_FAILURE, "clnt_call: %s", clnt_sperrno(rv));
236	clnt_destroy(clnt);
237
238	return EXIT_SUCCESS;
239}
240
241
242#ifdef TEST
243static void
244allhosts(const char *transp)
245{
246	enum clnt_stat  clnt_stat;
247
248	clnt_stat = rpc_broadcast(RPCBPROG, RPCBVERS, RPCBPROC_NULL,
249	    (xdrproc_t)xdr_void, NULL, (xdrproc_t)xdr_void,
250	    NULL, (resultproc_t)reply, transp);
251	if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
252		ERRX(EXIT_FAILURE, "%s", clnt_sperrno(clnt_stat));
253}
254
255int
256main(int argc, char *argv[])
257{
258	int             ch;
259	int		s, p;
260	const char     *transp = "udp";
261
262	p = s = 0;
263	while ((ch = getopt(argc, argv, "prstu")) != -1)
264		switch (ch) {
265		case 'p':
266			p = 1;
267			break;
268		case 's':
269			s = 1;
270			break;
271		case 't':
272			transp = "tcp";
273			break;
274		case 'u':
275			transp = "udp";
276			break;
277		case 'r':
278			transp = NULL;
279			break;
280		default:
281			fprintf(stderr,
282			    "Usage: %s -[r|s|t|u] [<hostname>...]\n",
283			    getprogname());
284			return EXIT_FAILURE;
285		}
286
287	if (argc == optind) {
288		if  (transp)
289			allhosts(transp);
290		else
291			rawtest(NULL);
292	} else {
293		for (; optind < argc; optind++) {
294			if (transp)
295				s == 0 ?
296				    onehost(argv[optind], transp) :
297				    regtest(argv[optind], transp, "1", p);
298			else
299				rawtest(argv[optind]);
300		}
301	}
302
303	return EXIT_SUCCESS;
304}
305
306#else
307
308ATF_TC(get_svc_addr_tcp);
309ATF_TC_HEAD(get_svc_addr_tcp, tc)
310{
311	atf_tc_set_md_var(tc, "descr", "Checks CLGET_SVC_ADDR for tcp");
312
313}
314
315ATF_TC_BODY(get_svc_addr_tcp, tc)
316{
317	onehost("localhost", "tcp");
318
319}
320
321ATF_TC(get_svc_addr_udp);
322ATF_TC_HEAD(get_svc_addr_udp, tc)
323{
324	atf_tc_set_md_var(tc, "descr", "Checks CLGET_SVC_ADDR for udp");
325}
326
327ATF_TC_BODY(get_svc_addr_udp, tc)
328{
329	onehost("localhost", "udp");
330
331}
332
333ATF_TC(raw);
334ATF_TC_HEAD(raw, tc)
335{
336	atf_tc_set_md_var(tc, "descr", "Checks svc raw");
337}
338
339ATF_TC_BODY(raw, tc)
340{
341#ifdef __FreeBSD__
342#ifdef __FreeBSD_bug_216954__
343	atf_tc_expect_signal(SIGSEGV,
344	    "fails with SIGSEGV only on ^/stable/10 -- bug # 216954");
345#else
346	atf_tc_expect_fail("fails with: clnt_call: "
347	    "RPC: Can't decode result -- PR # 211804");
348#endif
349#endif
350	rawtest(NULL);
351
352}
353
354ATF_TC(tcp);
355ATF_TC_HEAD(tcp, tc)
356{
357	atf_tc_set_md_var(tc, "descr", "Checks svc tcp (select)");
358#ifdef __FreeBSD__
359	atf_tc_set_md_var(tc, "require.user", "root");
360#endif
361}
362
363ATF_TC_BODY(tcp, tc)
364{
365	regtest("localhost", "tcp", "1", 0);
366
367}
368
369ATF_TC(udp);
370ATF_TC_HEAD(udp, tc)
371{
372	atf_tc_set_md_var(tc, "descr", "Checks svc udp (select)");
373#ifdef __FreeBSD__
374	atf_tc_set_md_var(tc, "require.user", "root");
375#endif
376}
377
378ATF_TC_BODY(udp, tc)
379{
380	regtest("localhost", "udp", "1", 0);
381
382}
383
384ATF_TC(tcp_poll);
385ATF_TC_HEAD(tcp_poll, tc)
386{
387	atf_tc_set_md_var(tc, "descr", "Checks svc tcp (poll)");
388#ifdef __FreeBSD__
389	atf_tc_set_md_var(tc, "require.user", "root");
390#endif
391}
392
393ATF_TC_BODY(tcp_poll, tc)
394{
395	regtest("localhost", "tcp", "1", 1);
396
397}
398
399ATF_TC(udp_poll);
400ATF_TC_HEAD(udp_poll, tc)
401{
402	atf_tc_set_md_var(tc, "descr", "Checks svc udp (poll)");
403#ifdef __FreeBSD__
404	atf_tc_set_md_var(tc, "require.user", "root");
405#endif
406}
407
408ATF_TC_BODY(udp_poll, tc)
409{
410	regtest("localhost", "udp", "1", 1);
411
412}
413
414ATF_TP_ADD_TCS(tp)
415{
416	ATF_TP_ADD_TC(tp, get_svc_addr_udp);
417	ATF_TP_ADD_TC(tp, get_svc_addr_tcp);
418	ATF_TP_ADD_TC(tp, raw);
419	ATF_TP_ADD_TC(tp, tcp);
420	ATF_TP_ADD_TC(tp, udp);
421	ATF_TP_ADD_TC(tp, tcp_poll);
422	ATF_TP_ADD_TC(tp, udp_poll);
423
424	return atf_no_error();
425}
426
427#endif
428