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- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
-
- #ifndef lint
- #if 0
- static char sccsid[] = "from: @(#)rpc.rstatd.c 1.1 86/09/25 Copyr 1984 Sun Micro";
- static char sccsid[] = "from: @(#)rstat_proc.c 2.2 88/08/01 4.0 RPCSRC";
- #endif
- static const char rcsid[] =
- "$Id: rstat_proc.c,v 1.13 1998/10/08 19:59:40 ken Exp $";
- #endif
-
- /*
- * rstat service: built with rstat.x and derived from rpc.rstatd.c
- *
- * Copyright (c) 1984 by Sun Microsystems, Inc.
- */
-
- #include <sys/types.h>
- #include <sys/dkstat.h>
- #include <sys/socket.h>
- #include <sys/sysctl.h>
- #include <sys/time.h>
- #include <sys/vmmeter.h>
- #include <sys/param.h>
-
- #include <err.h>
- #include <fcntl.h>
- #include <kvm.h>
- #include <limits.h>
- #include <signal.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <syslog.h>
- #include <unistd.h>
- #include <devstat.h>
-
- #include <net/if.h>
- #include <net/if_mib.h>
-
- #undef FSHIFT /* Use protocol's shift and scale values */
- #undef FSCALE
- #undef if_ipackets
- #undef if_ierrors
- #undef if_opackets
- #undef if_oerrors
- #undef if_collisions
- #include <rpcsvc/rstat.h>
-
- struct nlist nl[] = {
- #define X_CPTIME 0
- { "_cp_time" },
- #define X_CNT 1
- { "_cnt" },
- { "" },
- };
-
- int havedisk __P((void));
- void updatexfers __P((int, int *));
- void setup __P((void));
- int stats_service();
-
- extern int from_inetd;
- int sincelastreq = 0; /* number of alarms since last request */
- extern int closedown;
-
- union {
- struct stats s1;
- struct statsswtch s2;
- struct statstime s3;
- } stats_all;
-
- void updatestat();
- static stat_is_init = 0;
- static kvm_t *kd;
-
- static int cp_time_xlat[RSTAT_CPUSTATES] = { CP_USER, CP_NICE, CP_SYS,
- CP_IDLE };
- static long bsd_cp_time[CPUSTATES];
-
-
- #ifndef FSCALE
- #define FSCALE (1 << 8)
- #endif
-
- void
- stat_init()
- {
- stat_is_init = 1;
- setup();
- updatestat();
- (void) signal(SIGALRM, updatestat);
- alarm(1);
- }
-
- statstime *
- rstatproc_stats_3_svc(argp, rqstp)
- void *argp;
- struct svc_req *rqstp;
- {
- if (! stat_is_init)
- stat_init();
- sincelastreq = 0;
- return(&stats_all.s3);
- }
-
- statsswtch *
- rstatproc_stats_2_svc(argp, rqstp)
- void *argp;
- struct svc_req *rqstp;
- {
- if (! stat_is_init)
- stat_init();
- sincelastreq = 0;
- return(&stats_all.s2);
- }
-
- stats *
- rstatproc_stats_1_svc(argp, rqstp)
- void *argp;
- struct svc_req *rqstp;
- {
- if (! stat_is_init)
- stat_init();
- sincelastreq = 0;
- return(&stats_all.s1);
- }
-
- u_int *
- rstatproc_havedisk_3_svc(argp, rqstp)
- void *argp;
- struct svc_req *rqstp;
- {
- static u_int have;
-
- if (! stat_is_init)
- stat_init();
- sincelastreq = 0;
- have = havedisk();
- return(&have);
- }
-
- u_int *
- rstatproc_havedisk_2_svc(argp, rqstp)
- void *argp;
- struct svc_req *rqstp;
- {
- return(rstatproc_havedisk_3_svc(argp, rqstp));
- }
-
- u_int *
- rstatproc_havedisk_1_svc(argp, rqstp)
- void *argp;
- struct svc_req *rqstp;
- {
- return(rstatproc_havedisk_3_svc(argp, rqstp));
- }
-
- void
- updatestat()
- {
- int i, hz;
- struct clockinfo clockrate;
- struct vmmeter cnt;
- struct ifmibdata ifmd;
- double avrun[3];
- struct timeval tm, btm;
- int mib[6];
- size_t len;
- int ifcount;
-
- #ifdef DEBUG
- fprintf(stderr, "entering updatestat\n");
- #endif
- if (sincelastreq >= closedown) {
- #ifdef DEBUG
- fprintf(stderr, "about to closedown\n");
- #endif
- if (from_inetd)
- exit(0);
- else {
- stat_is_init = 0;
- return;
- }
- }
- sincelastreq++;
-
- mib[0] = CTL_KERN;
- mib[1] = KERN_CLOCKRATE;
- len = sizeof clockrate;
- if (sysctl(mib, 2, &clockrate, &len, 0, 0) < 0) {
- syslog(LOG_ERR, "sysctl(kern.clockrate): %m");
- exit(1);
- }
- hz = clockrate.hz;
-
- if (kvm_read(kd, (long)nl[X_CPTIME].n_value, (char *)bsd_cp_time, sizeof(bsd_cp_time))
- != sizeof(bsd_cp_time)) {
- syslog(LOG_ERR, "rstat: can't read cp_time from kmem");
- exit(1);
- }
- for(i = 0; i < RSTAT_CPUSTATES ; i++)
- stats_all.s1.cp_time[i] = bsd_cp_time[cp_time_xlat[i]];
-
- (void)getloadavg(avrun, sizeof(avrun) / sizeof(avrun[0]));
-
- stats_all.s2.avenrun[0] = avrun[0] * FSCALE;
- stats_all.s2.avenrun[1] = avrun[1] * FSCALE;
- stats_all.s2.avenrun[2] = avrun[2] * FSCALE;
-
- mib[0] = CTL_KERN;
- mib[1] = KERN_BOOTTIME;
- len = sizeof btm;
- if (sysctl(mib, 2, &btm, &len, 0, 0) < 0) {
- syslog(LOG_ERR, "sysctl(kern.boottime): %m");
- exit(1);
- }
-
- stats_all.s2.boottime.tv_sec = btm.tv_sec;
- stats_all.s2.boottime.tv_usec = btm.tv_usec;
-
-
- #ifdef DEBUG
- fprintf(stderr, "%d %d %d %d\n", stats_all.s1.cp_time[0],
- stats_all.s1.cp_time[1], stats_all.s1.cp_time[2], stats_all.s1.cp_time[3]);
- #endif
-
- /* XXX - should use sysctl */
- if (kvm_read(kd, (long)nl[X_CNT].n_value, (char *)&cnt, sizeof cnt) != sizeof cnt) {
- syslog(LOG_ERR, "rstat: can't read cnt from kmem");
- exit(1);
- }
- stats_all.s1.v_pgpgin = cnt.v_vnodepgsin;
- stats_all.s1.v_pgpgout = cnt.v_vnodepgsout;
- stats_all.s1.v_pswpin = cnt.v_swappgsin;
- stats_all.s1.v_pswpout = cnt.v_swappgsout;
- stats_all.s1.v_intr = cnt.v_intr;
- gettimeofday(&tm, (struct timezone *) 0);
- stats_all.s1.v_intr -= hz*(tm.tv_sec - btm.tv_sec) +
- hz*(tm.tv_usec - btm.tv_usec)/1000000;
- stats_all.s2.v_swtch = cnt.v_swtch;
-
- /* update disk transfers */
- updatexfers(RSTAT_DK_NDRIVE, stats_all.s1.dk_xfer);
-
- mib[0] = CTL_NET;
- mib[1] = PF_LINK;
- mib[2] = NETLINK_GENERIC;
- mib[3] = IFMIB_SYSTEM;
- mib[4] = IFMIB_IFCOUNT;
- len = sizeof ifcount;
- if (sysctl(mib, 5, &ifcount, &len, 0, 0) < 0) {
- syslog(LOG_ERR, "sysctl(net.link.generic.system.ifcount): %m");
- exit(1);
- }
-
- stats_all.s1.if_ipackets = 0;
- stats_all.s1.if_opackets = 0;
- stats_all.s1.if_ierrors = 0;
- stats_all.s1.if_oerrors = 0;
- stats_all.s1.if_collisions = 0;
- for (i = 1; i <= ifcount; i++) {
- len = sizeof ifmd;
- mib[3] = IFMIB_IFDATA;
- mib[4] = i;
- mib[5] = IFDATA_GENERAL;
- if (sysctl(mib, 6, &ifmd, &len, 0, 0) < 0) {
- syslog(LOG_ERR, "sysctl(net.link.ifdata.%d.general)"
- ": %m", i);
- exit(1);
- }
-
- stats_all.s1.if_ipackets += ifmd.ifmd_data.ifi_ipackets;
- stats_all.s1.if_opackets += ifmd.ifmd_data.ifi_opackets;
- stats_all.s1.if_ierrors += ifmd.ifmd_data.ifi_ierrors;
- stats_all.s1.if_oerrors += ifmd.ifmd_data.ifi_oerrors;
- stats_all.s1.if_collisions += ifmd.ifmd_data.ifi_collisions;
- }
- gettimeofday((struct timeval *)&stats_all.s3.curtime,
- (struct timezone *) 0);
- alarm(1);
- }
-
- void
- setup()
- {
- char errbuf[_POSIX2_LINE_MAX];
-
- int en;
-
- if ((kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf)) == NULL) {
- syslog(LOG_ERR, "rpc.rstatd, %s", errbuf);
- exit(1);
- }
-
- if ((en = kvm_nlist(kd, nl)) != 0) {
- syslog(LOG_ERR, "rstatd: Can't get namelist. %d", en);
- exit (1);
- }
- }
-
- /*
- * returns true if have a disk
- */
- int
- havedisk()
- {
- register int i;
- struct statinfo stats;
- int num_devices, retval = 0;
-
- if ((num_devices = getnumdevs()) < 0) {
- syslog(LOG_ERR, "rstatd: can't get number of devices: %s",
- devstat_errbuf);
- exit(1);
- }
-
- if (checkversion() < 0) {
- syslog(LOG_ERR, "rstatd: %s", devstat_errbuf);
- exit(1);
- }
-
- stats.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
- bzero(stats.dinfo, sizeof(struct devinfo));
-
- if (getdevs(&stats) == -1) {
- syslog(LOG_ERR, "rstatd: can't get device list: %s",
- devstat_errbuf);
- exit(1);
- }
- for (i = 0; i < stats.dinfo->numdevs; i++) {
- if (((stats.dinfo->devices[i].device_type
- & DEVSTAT_TYPE_MASK) == DEVSTAT_TYPE_DIRECT)
- && ((stats.dinfo->devices[i].device_type
- & DEVSTAT_TYPE_PASS) == 0)) {
- retval = 1;
- break;
- }
- }
-
- if (stats.dinfo->mem_ptr)
- free(stats.dinfo->mem_ptr);
-
- free(stats.dinfo);
- return(retval);
- }
-
- void
- updatexfers(numdevs, devs)
- int numdevs, *devs;
- {
- register int i, j, t;
- struct statinfo stats;
- int num_devices = 0;
- u_int64_t total_transfers;
-
- if ((num_devices = getnumdevs()) < 0) {
- syslog(LOG_ERR, "rstatd: can't get number of devices: %s",
- devstat_errbuf);
- exit(1);
- }
-
- if (checkversion() < 0) {
- syslog(LOG_ERR, "rstatd: %s", devstat_errbuf);
- exit(1);
- }
-
- stats.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
- bzero(stats.dinfo, sizeof(struct devinfo));
-
- if (getdevs(&stats) == -1) {
- syslog(LOG_ERR, "rstatd: can't get device list: %s",
- devstat_errbuf);
- exit(1);
- }
-
- for (i = 0, j = 0; i < stats.dinfo->numdevs && j < numdevs; i++) {
- if (((stats.dinfo->devices[i].device_type
- & DEVSTAT_TYPE_MASK) == DEVSTAT_TYPE_DIRECT)
- && ((stats.dinfo->devices[i].device_type
- & DEVSTAT_TYPE_PASS) == 0)) {
- total_transfers = stats.dinfo->devices[i].num_reads +
- stats.dinfo->devices[i].num_writes +
- stats.dinfo->devices[i].num_other;
- /*
- * XXX KDM If the total transfers for this device
- * are greater than the amount we can fit in a
- * signed integer, just set them to the maximum
- * amount we can fit in a signed integer. I have a
- * feeling that the rstat protocol assumes 32-bit
- * integers, so this could well break on a 64-bit
- * architecture like the Alpha.
- */
- if (total_transfers > INT_MAX)
- t = INT_MAX;
- else
- t = total_transfers;
- devs[j] = t;
- j++;
- }
- }
-
- if (stats.dinfo->mem_ptr)
- free(stats.dinfo->mem_ptr);
-
- free(stats.dinfo);
- }
-
- void
- rstat_service(rqstp, transp)
- struct svc_req *rqstp;
- SVCXPRT *transp;
- {
- union {
- int fill;
- } argument;
- char *result;
- bool_t (*xdr_argument)(), (*xdr_result)();
- char *(*local)();
-
- switch (rqstp->rq_proc) {
- case NULLPROC:
- (void)svc_sendreply(transp, xdr_void, (char *)NULL);
- goto leave;
-
- case RSTATPROC_STATS:
- xdr_argument = xdr_void;
- xdr_result = xdr_statstime;
- switch (rqstp->rq_vers) {
- case RSTATVERS_ORIG:
- local = (char *(*)()) rstatproc_stats_1_svc;
- break;
- case RSTATVERS_SWTCH:
- local = (char *(*)()) rstatproc_stats_2_svc;
- break;
- case RSTATVERS_TIME:
- local = (char *(*)()) rstatproc_stats_3_svc;
- break;
- default:
- svcerr_progvers(transp, RSTATVERS_ORIG, RSTATVERS_TIME);
- goto leave;
- /*NOTREACHED*/
- }
- break;
-
- case RSTATPROC_HAVEDISK:
- xdr_argument = xdr_void;
- xdr_result = xdr_u_int;
- switch (rqstp->rq_vers) {
- case RSTATVERS_ORIG:
- local = (char *(*)()) rstatproc_havedisk_1_svc;
- break;
- case RSTATVERS_SWTCH:
- local = (char *(*)()) rstatproc_havedisk_2_svc;
- break;
- case RSTATVERS_TIME:
- local = (char *(*)()) rstatproc_havedisk_3_svc;
- break;
- default:
- svcerr_progvers(transp, RSTATVERS_ORIG, RSTATVERS_TIME);
- goto leave;
- /*NOTREACHED*/
- }
- break;
-
- default:
- svcerr_noproc(transp);
- goto leave;
- }
- bzero((char *)&argument, sizeof(argument));
- if (!svc_getargs(transp, xdr_argument, (caddr_t)&argument)) {
- svcerr_decode(transp);
- goto leave;
- }
- result = (*local)(&argument, rqstp);
- if (result != NULL && !svc_sendreply(transp, xdr_result, result)) {
- svcerr_systemerr(transp);
- }
- if (!svc_freeargs(transp, xdr_argument, (caddr_t)&argument))
- errx(1, "unable to free arguments");
- leave:
- if (from_inetd)
- exit(0);
- }
-