/* * 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[] = "$FreeBSD$"; #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 #include #include #include #include #include #include #include #include #include #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 struct nlist nl[] = { #define X_CPTIME 0 { "_cp_time" }, #define X_CNT 1 { "_cnt" }, { "" }, }; int havedisk(void); void updatexfers(int, int *); void setup(void); int stats_service(void); 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(void) { stat_is_init = 1; setup(); alarm(0); updatestat(); (void) signal(SIGALRM, updatestat); alarm(1); } statstime * rstatproc_stats_3_svc(void *argp, struct svc_req *rqstp) { if (! stat_is_init) stat_init(); sincelastreq = 0; return(&stats_all.s3); } statsswtch * rstatproc_stats_2_svc(void *argp, struct svc_req *rqstp) { if (! stat_is_init) stat_init(); sincelastreq = 0; return(&stats_all.s2); } stats * rstatproc_stats_1_svc(void *argp, struct svc_req *rqstp) { if (! stat_is_init) stat_init(); sincelastreq = 0; return(&stats_all.s1); } u_int * rstatproc_havedisk_3_svc(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(void *argp, struct svc_req *rqstp) { return(rstatproc_havedisk_3_svc(argp, rqstp)); } u_int * rstatproc_havedisk_1_svc(void *argp, struct svc_req *rqstp) { return(rstatproc_havedisk_3_svc(argp, rqstp)); } void updatestat(void) { 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 kvm_close(kd); 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) { if (errno == ENOENT) continue; 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(void) { 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(int numdevs, int *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(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, (xdrproc_t)xdr_void, 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, (xdrproc_t)xdr_argument, &argument)) { svcerr_decode(transp); goto leave; } result = (*local)(&argument, rqstp); if (result != NULL && !svc_sendreply(transp, (xdrproc_t)xdr_result, result)) { svcerr_systemerr(transp); } if (!svc_freeargs(transp, (xdrproc_t)xdr_argument, &argument)) errx(1, "unable to free arguments"); leave: if (from_inetd) exit(0); }