/* * 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 /*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";*/ static char rcsid[] = "$Id: rstat_proc.c,v 1.9 1994/05/25 19:40:40 pk Exp $"; #endif /* * rstat service: built with rstat.x and derived from rpc.rstatd.c * * Copyright (c) 1984 by Sun Microsystems, Inc. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef BSD #include #include #else #include #endif #include #undef FSHIFT /* Use protocol's shift and scale values */ #undef FSCALE #undef DK_NDRIVE #undef CPUSTATES #undef if_ipackets #undef if_ierrors #undef if_opackets #undef if_oerrors #undef if_collisions #include #ifdef BSD #define BSD_CPUSTATES 5 /* Use protocol's idea of CPU states */ int cp_xlat[CPUSTATES] = { CP_USER, CP_NICE, CP_SYS, CP_IDLE }; #endif struct nlist nl[] = { #define X_CPTIME 0 { "_cp_time" }, #define X_CNT 1 { "_cnt" }, #define X_IFNET 2 { "_ifnet" }, #define X_DKXFER 3 { "_dk_xfer" }, #define X_BOOTTIME 4 { "_boottime" }, #define X_HZ 5 { "_hz" }, #ifdef vax #define X_AVENRUN 6 { "_avenrun" }, #endif "", }; int firstifnet, numintfs; /* chain of ethernet interfaces */ int stats_service(); extern int from_inetd; int sincelastreq = 0; /* number of alarms since last request */ extern int closedown; kvm_t *kfd; union { struct stats s1; struct statsswtch s2; struct statstime s3; } stats_all; void updatestat(); static stat_is_init = 0; extern int errno; #ifndef FSCALE #define FSCALE (1 << 8) #endif #ifndef BSD /* * BSD has the kvm facility for getting info from the * kernel. If you aren't on BSD, this surfices. */ int kmem; kvm_read(kfd, off, addr, size) void *kfd; unsigned long off, size; char *addr; { int len; if (lseek(kmem, off, 0) == -1) return(-1); return(read(kmem, addr, size)); } kvm_nlist(kfd, nl) void *kfd; struct nlist *nl; { int n = nlist("/vmunix", nl); if (nl[0].n_value == 0) return(n); if ((kmem = open("/dev/kmem", 0)) < 0) return(-1); return(0); } #endif stat_init() { stat_is_init = 1; setup(); updatestat(); (void) signal(SIGALRM, updatestat); alarm(1); } statstime * rstatproc_stats_3() { if (! stat_is_init) stat_init(); sincelastreq = 0; return(&stats_all.s3); } statsswtch * rstatproc_stats_2() { if (! stat_is_init) stat_init(); sincelastreq = 0; return(&stats_all.s2); } stats * rstatproc_stats_1() { if (! stat_is_init) stat_init(); sincelastreq = 0; return(&stats_all.s1); } u_int * rstatproc_havedisk_3() { static u_int have; if (! stat_is_init) stat_init(); sincelastreq = 0; have = havedisk(); return(&have); } u_int * rstatproc_havedisk_2() { return(rstatproc_havedisk_3()); } u_int * rstatproc_havedisk_1() { return(rstatproc_havedisk_3()); } void updatestat() { int off, i, hz; struct vmmeter cnt; struct ifnet ifnet; double avrun[3]; struct timeval tm, btm; #ifdef BSD int cp_time[BSD_CPUSTATES]; #endif #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++; if (kvm_read(kfd, (long)nl[X_HZ].n_value, (char *)&hz, sizeof hz) != sizeof hz) { syslog(LOG_ERR, "rstat: can't read hz from kmem\n"); exit(1); } #ifdef BSD if (kvm_read(kfd, (long)nl[X_CPTIME].n_value, (char *)cp_time, sizeof (cp_time)) != sizeof (cp_time)) { syslog(LOG_ERR, "rstat: can't read cp_time from kmem\n"); exit(1); } for (i = 0; i < CPUSTATES; i++) stats_all.s1.cp_time[i] = cp_time[cp_xlat[i]]; #else if (kvm_read(kfd, (long)nl[X_CPTIME].n_value, (char *)stats_all.s1.cp_time, sizeof (stats_all.s1.cp_time)) != sizeof (stats_all.s1.cp_time)) { syslog(LOG_ERR, "rstat: can't read cp_time from kmem\n"); exit(1); } #endif #ifdef vax if (kvm_read(kfd, (long)nl[X_AVENRUN].n_value, (char *)avrun, sizeof (avrun)) != sizeof (avrun)) { syslog(LOG_ERR, "rstat: can't read avenrun from kmem\n"); exit(1); } #endif #ifdef BSD (void)getloadavg(avrun, sizeof(avrun) / sizeof(avrun[0])); #endif stats_all.s2.avenrun[0] = avrun[0] * FSCALE; stats_all.s2.avenrun[1] = avrun[1] * FSCALE; stats_all.s2.avenrun[2] = avrun[2] * FSCALE; if (kvm_read(kfd, (long)nl[X_BOOTTIME].n_value, (char *)&btm, sizeof (stats_all.s2.boottime)) != sizeof (stats_all.s2.boottime)) { syslog(LOG_ERR, "rstat: can't read boottime from kmem\n"); 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 if (kvm_read(kfd, (long)nl[X_CNT].n_value, (char *)&cnt, sizeof cnt) != sizeof cnt) { syslog(LOG_ERR, "rstat: can't read cnt from kmem\n"); exit(1); } stats_all.s1.v_pgpgin = cnt.v_pgpgin; stats_all.s1.v_pgpgout = cnt.v_pgpgout; stats_all.s1.v_pswpin = cnt.v_pswpin; stats_all.s1.v_pswpout = cnt.v_pswpout; 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; if (kvm_read(kfd, (long)nl[X_DKXFER].n_value, (char *)stats_all.s1.dk_xfer, sizeof (stats_all.s1.dk_xfer)) != sizeof (stats_all.s1.dk_xfer)) { syslog(LOG_ERR, "rstat: can't read dk_xfer from kmem\n"); 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 (off = firstifnet, i = 0; off && i < numintfs; i++) { if (kvm_read(kfd, off, (char *)&ifnet, sizeof ifnet) != sizeof ifnet) { syslog(LOG_ERR, "rstat: can't read ifnet from kmem\n"); exit(1); } stats_all.s1.if_ipackets += ifnet.if_data.ifi_ipackets; stats_all.s1.if_opackets += ifnet.if_data.ifi_opackets; stats_all.s1.if_ierrors += ifnet.if_data.ifi_ierrors; stats_all.s1.if_oerrors += ifnet.if_data.ifi_oerrors; stats_all.s1.if_collisions += ifnet.if_data.ifi_collisions; off = (int) ifnet.if_next; } gettimeofday((struct timeval *)&stats_all.s3.curtime, (struct timezone *) 0); alarm(1); } setup() { struct ifnet ifnet; int off; char errbuf[_POSIX2_LINE_MAX]; kfd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf); if (kfd == NULL) { syslog(LOG_ERR, "rstat: %s", errbuf); exit (1); } if (kvm_nlist(kfd, nl) != 0) { syslog(LOG_ERR, "rstatd: Can't get namelist."); exit (1); } if (kvm_read(kfd, (long)nl[X_IFNET].n_value, &firstifnet, sizeof(int)) != sizeof(int)) { syslog(LOG_ERR, "rstat: can't read firstifnet from kmem\n"); exit(1); } numintfs = 0; for (off = firstifnet; off;) { if (kvm_read(kfd, off, (char *)&ifnet, sizeof ifnet) != sizeof ifnet) { syslog(LOG_ERR, "rstat: can't read ifnet from kmem\n"); exit(1); } numintfs++; off = (int) ifnet.if_next; } } /* * returns true if have a disk */ int havedisk() { int i, cnt; long xfer[DK_NDRIVE]; if (kvm_nlist(kfd, nl) != 0) { syslog(LOG_ERR, "rstatd: Can't get namelist."); exit (1); } if (kvm_read(kfd, (long)nl[X_DKXFER].n_value, (char *)xfer, sizeof xfer) != sizeof xfer) { syslog(LOG_ERR, "rstat: can't read kmem\n"); exit(1); } cnt = 0; for (i=0; i < DK_NDRIVE; i++) cnt += xfer[i]; return (cnt != 0); } 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; break; case RSTATVERS_SWTCH: local = (char *(*)()) rstatproc_stats_2; break; case RSTATVERS_TIME: local = (char *(*)()) rstatproc_stats_3; 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; break; case RSTATVERS_SWTCH: local = (char *(*)()) rstatproc_havedisk_2; break; case RSTATVERS_TIME: local = (char *(*)()) rstatproc_havedisk_3; 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, &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, &argument)) { (void)fprintf(stderr, "unable to free arguments\n"); exit(1); } leave: if (from_inetd) exit(0); }