Ansify some function definitions that were previously overlooked.
[dragonfly.git] / libexec / rpc.rstatd / rstat_proc.c
CommitLineData
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1/*
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.
8 *
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.
12 *
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.
16 *
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.
20 *
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.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California 94043
1de703da
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28 *
29 * @(#)rpc.rstatd.c 1.1 86/09/25 Copyr 1984 Sun Micro
30 * @(#)rstat_proc.c 2.2 88/08/01 4.0 RPCSRC
31 * $FreeBSD: src/libexec/rpc.rstatd/rstat_proc.c,v 1.14.2.1 2002/07/11 17:17:56 alfred Exp $
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32 */
33
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34/*
35 * rstat service: built with rstat.x and derived from rpc.rstatd.c
36 *
37 * Copyright (c) 1984 by Sun Microsystems, Inc.
38 */
39
e0ecab34 40#include <sys/param.h>
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41#include <sys/socket.h>
42#include <sys/sysctl.h>
43#include <sys/time.h>
44#include <sys/vmmeter.h>
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45
46#include <err.h>
47#include <fcntl.h>
8f5c3d2a 48#include <kinfo.h>
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49#include <limits.h>
50#include <signal.h>
51#include <stdio.h>
52#include <stdlib.h>
53#include <string.h>
54#include <syslog.h>
55#include <unistd.h>
56#include <devstat.h>
57
58#include <net/if.h>
59#include <net/if_mib.h>
60
61#undef FSHIFT /* Use protocol's shift and scale values */
62#undef FSCALE
63#undef if_ipackets
64#undef if_ierrors
65#undef if_opackets
66#undef if_oerrors
67#undef if_collisions
68#include <rpcsvc/rstat.h>
69
f2b7decb 70int haveadisk (void);
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71void updatexfers (int, int *);
72void setup (void);
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73int stats_service();
74
75extern int from_inetd;
76int sincelastreq = 0; /* number of alarms since last request */
77extern int closedown;
78
79union {
80 struct stats s1;
81 struct statsswtch s2;
82 struct statstime s3;
83} stats_all;
84
85void updatestat();
8f5c3d2a 86static int stat_is_init = 0;
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87
88#ifndef FSCALE
89#define FSCALE (1 << 8)
90#endif
91
92void
89a89091 93stat_init(void)
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94{
95 stat_is_init = 1;
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96 alarm(0);
97 updatestat();
98 (void) signal(SIGALRM, updatestat);
99 alarm(1);
100}
101
102statstime *
89a89091 103rstatproc_stats_3_svc(void *argp, struct svc_req *rqstp)
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104{
105 if (! stat_is_init)
106 stat_init();
107 sincelastreq = 0;
108 return(&stats_all.s3);
109}
110
111statsswtch *
89a89091 112rstatproc_stats_2_svc(void *argp, struct svc_req *rqstp)
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113{
114 if (! stat_is_init)
115 stat_init();
116 sincelastreq = 0;
117 return(&stats_all.s2);
118}
119
120stats *
89a89091 121rstatproc_stats_1_svc(void *argp, struct svc_req *rqstp)
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122{
123 if (! stat_is_init)
124 stat_init();
125 sincelastreq = 0;
126 return(&stats_all.s1);
127}
128
129u_int *
89a89091 130rstatproc_havedisk_3_svc(void *argp, struct svc_req *rqstp)
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131{
132 static u_int have;
133
134 if (! stat_is_init)
135 stat_init();
136 sincelastreq = 0;
f2b7decb 137 have = haveadisk();
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138 return(&have);
139}
140
141u_int *
89a89091 142rstatproc_havedisk_2_svc(void *argp, struct svc_req *rqstp)
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143{
144 return(rstatproc_havedisk_3_svc(argp, rqstp));
145}
146
147u_int *
89a89091 148rstatproc_havedisk_1_svc(void *argp, struct svc_req *rqstp)
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149{
150 return(rstatproc_havedisk_3_svc(argp, rqstp));
151}
152
153void
89a89091 154updatestat(void)
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155{
156 int i, hz;
157 struct clockinfo clockrate;
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158 struct vmmeter vmm;
159 size_t vmm_size = sizeof(vmm);
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160 struct ifmibdata ifmd;
161 double avrun[3];
162 struct timeval tm, btm;
f5d21610 163 struct kinfo_cputime cp_time;
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164 int mib[6];
165 size_t len;
166 int ifcount;
167
168#ifdef DEBUG
169 fprintf(stderr, "entering updatestat\n");
170#endif
171 if (sincelastreq >= closedown) {
172#ifdef DEBUG
173 fprintf(stderr, "about to closedown\n");
174#endif
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175 if (from_inetd)
176 exit(0);
177 else {
178 stat_is_init = 0;
179 return;
180 }
181 }
182 sincelastreq++;
183
184 mib[0] = CTL_KERN;
185 mib[1] = KERN_CLOCKRATE;
186 len = sizeof clockrate;
187 if (sysctl(mib, 2, &clockrate, &len, 0, 0) < 0) {
188 syslog(LOG_ERR, "sysctl(kern.clockrate): %m");
189 exit(1);
190 }
191 hz = clockrate.hz;
192
f5d21610 193 if (kinfo_get_sched_cputime(&cp_time)) {
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194 syslog(LOG_ERR, "rstat: can't read cp_time from kmem");
195 exit(1);
196 }
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197 stats_all.s1.cp_time[0] = cp_time.cp_user;
198 stats_all.s1.cp_time[1] = cp_time.cp_nice;
199 stats_all.s1.cp_time[2] = cp_time.cp_sys;
200 stats_all.s1.cp_time[3] = cp_time.cp_idle;
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201
202 (void)getloadavg(avrun, sizeof(avrun) / sizeof(avrun[0]));
203
204 stats_all.s2.avenrun[0] = avrun[0] * FSCALE;
205 stats_all.s2.avenrun[1] = avrun[1] * FSCALE;
206 stats_all.s2.avenrun[2] = avrun[2] * FSCALE;
207
208 mib[0] = CTL_KERN;
209 mib[1] = KERN_BOOTTIME;
210 len = sizeof btm;
211 if (sysctl(mib, 2, &btm, &len, 0, 0) < 0) {
212 syslog(LOG_ERR, "sysctl(kern.boottime): %m");
213 exit(1);
214 }
215
216 stats_all.s2.boottime.tv_sec = btm.tv_sec;
217 stats_all.s2.boottime.tv_usec = btm.tv_usec;
218
219
220#ifdef DEBUG
221 fprintf(stderr, "%d %d %d %d\n", stats_all.s1.cp_time[0],
222 stats_all.s1.cp_time[1], stats_all.s1.cp_time[2], stats_all.s1.cp_time[3]);
223#endif
224
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225 if (sysctlbyname("vm.vmmeter", &vmm, &vmm_size, NULL, 0)) {
226 syslog(LOG_ERR, "sysctlbyname: vm.vmmeter");
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227 exit(1);
228 }
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229 stats_all.s1.v_pgpgin = vmm.v_vnodepgsin;
230 stats_all.s1.v_pgpgout = vmm.v_vnodepgsout;
231 stats_all.s1.v_pswpin = vmm.v_swappgsin;
232 stats_all.s1.v_pswpout = vmm.v_swappgsout;
233 stats_all.s1.v_intr = vmm.v_intr;
902ec341 234 gettimeofday(&tm, NULL);
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235 stats_all.s1.v_intr -= hz*(tm.tv_sec - btm.tv_sec) +
236 hz*(tm.tv_usec - btm.tv_usec)/1000000;
f5d21610 237 stats_all.s2.v_swtch = vmm.v_swtch;
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238
239 /* update disk transfers */
240 updatexfers(RSTAT_DK_NDRIVE, stats_all.s1.dk_xfer);
241
242 mib[0] = CTL_NET;
243 mib[1] = PF_LINK;
244 mib[2] = NETLINK_GENERIC;
245 mib[3] = IFMIB_SYSTEM;
246 mib[4] = IFMIB_IFCOUNT;
247 len = sizeof ifcount;
248 if (sysctl(mib, 5, &ifcount, &len, 0, 0) < 0) {
249 syslog(LOG_ERR, "sysctl(net.link.generic.system.ifcount): %m");
250 exit(1);
251 }
252
253 stats_all.s1.if_ipackets = 0;
254 stats_all.s1.if_opackets = 0;
255 stats_all.s1.if_ierrors = 0;
256 stats_all.s1.if_oerrors = 0;
257 stats_all.s1.if_collisions = 0;
258 for (i = 1; i <= ifcount; i++) {
259 len = sizeof ifmd;
260 mib[3] = IFMIB_IFDATA;
261 mib[4] = i;
262 mib[5] = IFDATA_GENERAL;
263 if (sysctl(mib, 6, &ifmd, &len, 0, 0) < 0) {
264 syslog(LOG_ERR, "sysctl(net.link.ifdata.%d.general)"
265 ": %m", i);
266 exit(1);
267 }
268
269 stats_all.s1.if_ipackets += ifmd.ifmd_data.ifi_ipackets;
270 stats_all.s1.if_opackets += ifmd.ifmd_data.ifi_opackets;
271 stats_all.s1.if_ierrors += ifmd.ifmd_data.ifi_ierrors;
272 stats_all.s1.if_oerrors += ifmd.ifmd_data.ifi_oerrors;
273 stats_all.s1.if_collisions += ifmd.ifmd_data.ifi_collisions;
274 }
902ec341 275 gettimeofday((struct timeval *)&stats_all.s3.curtime, NULL);
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276 alarm(1);
277}
278
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279/*
280 * returns true if have a disk
281 */
282int
89a89091 283haveadisk(void)
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284{
285 register int i;
286 struct statinfo stats;
287 int num_devices, retval = 0;
288
289 if ((num_devices = getnumdevs()) < 0) {
290 syslog(LOG_ERR, "rstatd: can't get number of devices: %s",
291 devstat_errbuf);
292 exit(1);
293 }
294
295 if (checkversion() < 0) {
296 syslog(LOG_ERR, "rstatd: %s", devstat_errbuf);
297 exit(1);
298 }
299
300 stats.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
301 bzero(stats.dinfo, sizeof(struct devinfo));
302
303 if (getdevs(&stats) == -1) {
304 syslog(LOG_ERR, "rstatd: can't get device list: %s",
305 devstat_errbuf);
306 exit(1);
307 }
308 for (i = 0; i < stats.dinfo->numdevs; i++) {
309 if (((stats.dinfo->devices[i].device_type
310 & DEVSTAT_TYPE_MASK) == DEVSTAT_TYPE_DIRECT)
311 && ((stats.dinfo->devices[i].device_type
312 & DEVSTAT_TYPE_PASS) == 0)) {
313 retval = 1;
314 break;
315 }
316 }
317
318 if (stats.dinfo->mem_ptr)
319 free(stats.dinfo->mem_ptr);
320
321 free(stats.dinfo);
322 return(retval);
323}
324
325void
89a89091 326updatexfers(int numdevs, int *devs)
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327{
328 register int i, j, t;
329 struct statinfo stats;
330 int num_devices = 0;
331 u_int64_t total_transfers;
332
333 if ((num_devices = getnumdevs()) < 0) {
334 syslog(LOG_ERR, "rstatd: can't get number of devices: %s",
335 devstat_errbuf);
336 exit(1);
337 }
338
339 if (checkversion() < 0) {
340 syslog(LOG_ERR, "rstatd: %s", devstat_errbuf);
341 exit(1);
342 }
343
344 stats.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
345 bzero(stats.dinfo, sizeof(struct devinfo));
346
347 if (getdevs(&stats) == -1) {
348 syslog(LOG_ERR, "rstatd: can't get device list: %s",
349 devstat_errbuf);
350 exit(1);
351 }
352
353 for (i = 0, j = 0; i < stats.dinfo->numdevs && j < numdevs; i++) {
354 if (((stats.dinfo->devices[i].device_type
355 & DEVSTAT_TYPE_MASK) == DEVSTAT_TYPE_DIRECT)
356 && ((stats.dinfo->devices[i].device_type
357 & DEVSTAT_TYPE_PASS) == 0)) {
358 total_transfers = stats.dinfo->devices[i].num_reads +
359 stats.dinfo->devices[i].num_writes +
360 stats.dinfo->devices[i].num_other;
361 /*
362 * XXX KDM If the total transfers for this device
363 * are greater than the amount we can fit in a
364 * signed integer, just set them to the maximum
365 * amount we can fit in a signed integer. I have a
366 * feeling that the rstat protocol assumes 32-bit
367 * integers, so this could well break on a 64-bit
368 * architecture like the Alpha.
369 */
370 if (total_transfers > INT_MAX)
371 t = INT_MAX;
372 else
373 t = total_transfers;
374 devs[j] = t;
375 j++;
376 }
377 }
378
379 if (stats.dinfo->mem_ptr)
380 free(stats.dinfo->mem_ptr);
381
382 free(stats.dinfo);
383}
384
385void
89a89091 386rstat_service(struct svc_req *rqstp, SVCXPRT *transp)
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387{
388 union {
389 int fill;
390 } argument;
391 char *result;
392 bool_t (*xdr_argument)(), (*xdr_result)();
393 char *(*local)();
394
395 switch (rqstp->rq_proc) {
396 case NULLPROC:
4260e333 397 (void)svc_sendreply(transp, (xdrproc_t)xdr_void, NULL);
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398 goto leave;
399
400 case RSTATPROC_STATS:
401 xdr_argument = xdr_void;
402 xdr_result = xdr_statstime;
403 switch (rqstp->rq_vers) {
404 case RSTATVERS_ORIG:
405 local = (char *(*)()) rstatproc_stats_1_svc;
406 break;
407 case RSTATVERS_SWTCH:
408 local = (char *(*)()) rstatproc_stats_2_svc;
409 break;
410 case RSTATVERS_TIME:
411 local = (char *(*)()) rstatproc_stats_3_svc;
412 break;
413 default:
414 svcerr_progvers(transp, RSTATVERS_ORIG, RSTATVERS_TIME);
415 goto leave;
416 /*NOTREACHED*/
417 }
418 break;
419
420 case RSTATPROC_HAVEDISK:
421 xdr_argument = xdr_void;
422 xdr_result = xdr_u_int;
423 switch (rqstp->rq_vers) {
424 case RSTATVERS_ORIG:
425 local = (char *(*)()) rstatproc_havedisk_1_svc;
426 break;
427 case RSTATVERS_SWTCH:
428 local = (char *(*)()) rstatproc_havedisk_2_svc;
429 break;
430 case RSTATVERS_TIME:
431 local = (char *(*)()) rstatproc_havedisk_3_svc;
432 break;
433 default:
434 svcerr_progvers(transp, RSTATVERS_ORIG, RSTATVERS_TIME);
435 goto leave;
436 /*NOTREACHED*/
437 }
438 break;
439
440 default:
441 svcerr_noproc(transp);
442 goto leave;
443 }
444 bzero((char *)&argument, sizeof(argument));
4260e333 445 if (!svc_getargs(transp, (xdrproc_t)xdr_argument, (caddr_t)&argument)) {
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446 svcerr_decode(transp);
447 goto leave;
448 }
449 result = (*local)(&argument, rqstp);
4260e333
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450 if (result != NULL &&
451 !svc_sendreply(transp, (xdrproc_t)xdr_result, result)) {
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452 svcerr_systemerr(transp);
453 }
4260e333 454 if (!svc_freeargs(transp, (xdrproc_t)xdr_argument, (caddr_t)&argument))
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455 errx(1, "unable to free arguments");
456leave:
457 if (from_inetd)
458 exit(0);
459}