| 1 | /* @(#)rstat_proc.c 2.2 88/08/01 4.0 RPCSRC */ |
| 2 | #ifndef lint |
| 3 | static char sccsid[] = "@(#)rpc.rstatd.c 1.1 86/09/25 Copyr 1984 Sun Micro"; |
| 4 | #endif |
| 5 | |
| 6 | /* |
| 7 | * Copyright (c) 1984 by Sun Microsystems, Inc. |
| 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * Sun RPC is a product of Sun Microsystems, Inc. and is provided for |
| 12 | * unrestricted use provided that this legend is included on all tape |
| 13 | * media and as a part of the software program in whole or part. Users |
| 14 | * may copy or modify Sun RPC without charge, but are not authorized |
| 15 | * to license or distribute it to anyone else except as part of a product or |
| 16 | * program developed by the user. |
| 17 | * |
| 18 | * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE |
| 19 | * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR |
| 20 | * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. |
| 21 | * |
| 22 | * Sun RPC is provided with no support and without any obligation on the |
| 23 | * part of Sun Microsystems, Inc. to assist in its use, correction, |
| 24 | * modification or enhancement. |
| 25 | * |
| 26 | * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE |
| 27 | * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC |
| 28 | * OR ANY PART THEREOF. |
| 29 | * |
| 30 | * In no event will Sun Microsystems, Inc. be liable for any lost revenue |
| 31 | * or profits or other special, indirect and consequential damages, even if |
| 32 | * Sun has been advised of the possibility of such damages. |
| 33 | * |
| 34 | * Sun Microsystems, Inc. |
| 35 | * 2550 Garcia Avenue |
| 36 | * Mountain View, California 94043 |
| 37 | */ |
| 38 | |
| 39 | /* |
| 40 | * rstat service: built with rstat.x and derived from rpc.rstatd.c |
| 41 | */ |
| 42 | |
| 43 | #include <signal.h> |
| 44 | #include <stdio.h> |
| 45 | #include <rpc/rpc.h> |
| 46 | #include <sys/socket.h> |
| 47 | #include <nlist.h> |
| 48 | #include <sys/dk.h> |
| 49 | #include <sys/errno.h> |
| 50 | #include <sys/vmmeter.h> |
| 51 | #include <net/if.h> |
| 52 | #include "rstat.h" |
| 53 | |
| 54 | struct nlist nl[] = { |
| 55 | #define X_CPTIME 0 |
| 56 | { "_cp_time" }, |
| 57 | #define X_SUM 1 |
| 58 | { "_sum" }, |
| 59 | #define X_IFNET 2 |
| 60 | { "_ifnet" }, |
| 61 | #define X_DKXFER 3 |
| 62 | { "_dk_xfer" }, |
| 63 | #define X_BOOTTIME 4 |
| 64 | { "_boottime" }, |
| 65 | #define X_AVENRUN 5 |
| 66 | { "_avenrun" }, |
| 67 | #define X_HZ 6 |
| 68 | { "_hz" }, |
| 69 | "", |
| 70 | }; |
| 71 | int kmem; |
| 72 | int firstifnet, numintfs; /* chain of ethernet interfaces */ |
| 73 | int stats_service(); |
| 74 | |
| 75 | /* |
| 76 | * Define EXIT_WHEN_IDLE if you are able to have this program invoked |
| 77 | * automatically on demand (as from inetd). When defined, the service |
| 78 | * will terminated after being idle for 20 seconds. |
| 79 | */ |
| 80 | int sincelastreq = 0; /* number of alarms since last request */ |
| 81 | #ifdef EXIT_WHEN_IDLE |
| 82 | #define CLOSEDOWN 20 /* how long to wait before exiting */ |
| 83 | #endif /* def EXIT_WHEN_IDLE */ |
| 84 | |
| 85 | union { |
| 86 | struct stats s1; |
| 87 | struct statsswtch s2; |
| 88 | struct statstime s3; |
| 89 | } stats_all; |
| 90 | |
| 91 | int updatestat(); |
| 92 | static stat_is_init = 0; |
| 93 | extern int errno; |
| 94 | |
| 95 | #ifndef FSCALE |
| 96 | #define FSCALE (1 << 8) |
| 97 | #endif |
| 98 | |
| 99 | stat_init() |
| 100 | { |
| 101 | stat_is_init = 1; |
| 102 | setup(); |
| 103 | updatestat(); |
| 104 | alarm(1); |
| 105 | signal(SIGALRM, updatestat); |
| 106 | sleep(1); /* allow for one wake-up */ |
| 107 | } |
| 108 | |
| 109 | statstime * |
| 110 | rstatproc_stats_3() |
| 111 | { |
| 112 | if (! stat_is_init) |
| 113 | stat_init(); |
| 114 | sincelastreq = 0; |
| 115 | return(&stats_all.s3); |
| 116 | } |
| 117 | |
| 118 | statsswtch * |
| 119 | rstatproc_stats_2() |
| 120 | { |
| 121 | if (! stat_is_init) |
| 122 | stat_init(); |
| 123 | sincelastreq = 0; |
| 124 | return(&stats_all.s2); |
| 125 | } |
| 126 | |
| 127 | stats * |
| 128 | rstatproc_stats_1() |
| 129 | { |
| 130 | if (! stat_is_init) |
| 131 | stat_init(); |
| 132 | sincelastreq = 0; |
| 133 | return(&stats_all.s1); |
| 134 | } |
| 135 | |
| 136 | u_int * |
| 137 | rstatproc_havedisk_3() |
| 138 | { |
| 139 | static u_int have; |
| 140 | |
| 141 | if (! stat_is_init) |
| 142 | stat_init(); |
| 143 | sincelastreq = 0; |
| 144 | have = havedisk(); |
| 145 | return(&have); |
| 146 | } |
| 147 | |
| 148 | u_int * |
| 149 | rstatproc_havedisk_2() |
| 150 | { |
| 151 | return(rstatproc_havedisk_3()); |
| 152 | } |
| 153 | |
| 154 | u_int * |
| 155 | rstatproc_havedisk_1() |
| 156 | { |
| 157 | return(rstatproc_havedisk_3()); |
| 158 | } |
| 159 | |
| 160 | updatestat() |
| 161 | { |
| 162 | int off, i, hz; |
| 163 | struct vmmeter sum; |
| 164 | struct ifnet ifnet; |
| 165 | double avrun[3]; |
| 166 | struct timeval tm, btm; |
| 167 | |
| 168 | #ifdef DEBUG |
| 169 | fprintf(stderr, "entering updatestat\n"); |
| 170 | #endif |
| 171 | #ifdef EXIT_WHEN_IDLE |
| 172 | if (sincelastreq >= CLOSEDOWN) { |
| 173 | #ifdef DEBUG |
| 174 | fprintf(stderr, "about to closedown\n"); |
| 175 | #endif |
| 176 | exit(0); |
| 177 | } |
| 178 | sincelastreq++; |
| 179 | #endif /* def EXIT_WHEN_IDLE */ |
| 180 | if (lseek(kmem, (long)nl[X_HZ].n_value, 0) == -1) { |
| 181 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 182 | exit(1); |
| 183 | } |
| 184 | if (read(kmem, (char *)&hz, sizeof hz) != sizeof hz) { |
| 185 | fprintf(stderr, "rstat: can't read hz from kmem\n"); |
| 186 | exit(1); |
| 187 | } |
| 188 | if (lseek(kmem, (long)nl[X_CPTIME].n_value, 0) == -1) { |
| 189 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 190 | exit(1); |
| 191 | } |
| 192 | if (read(kmem, (char *)stats_all.s1.cp_time, sizeof (stats_all.s1.cp_time)) |
| 193 | != sizeof (stats_all.s1.cp_time)) { |
| 194 | fprintf(stderr, "rstat: can't read cp_time from kmem\n"); |
| 195 | exit(1); |
| 196 | } |
| 197 | if (lseek(kmem, (long)nl[X_AVENRUN].n_value, 0) ==-1) { |
| 198 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 199 | exit(1); |
| 200 | } |
| 201 | #ifdef vax |
| 202 | if (read(kmem, (char *)avrun, sizeof (avrun)) != sizeof (avrun)) { |
| 203 | fprintf(stderr, "rstat: can't read avenrun from kmem\n"); |
| 204 | exit(1); |
| 205 | } |
| 206 | stats_all.s2.avenrun[0] = avrun[0] * FSCALE; |
| 207 | stats_all.s2.avenrun[1] = avrun[1] * FSCALE; |
| 208 | stats_all.s2.avenrun[2] = avrun[2] * FSCALE; |
| 209 | #endif |
| 210 | if (lseek(kmem, (long)nl[X_BOOTTIME].n_value, 0) == -1) { |
| 211 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 212 | exit(1); |
| 213 | } |
| 214 | if (read(kmem, (char *)&btm, sizeof (stats_all.s2.boottime)) |
| 215 | != sizeof (stats_all.s2.boottime)) { |
| 216 | fprintf(stderr, "rstat: can't read boottime from kmem\n"); |
| 217 | exit(1); |
| 218 | } |
| 219 | stats_all.s2.boottime.tv_sec = btm.tv_sec; |
| 220 | stats_all.s2.boottime.tv_usec = btm.tv_usec; |
| 221 | |
| 222 | |
| 223 | #ifdef DEBUG |
| 224 | fprintf(stderr, "%d %d %d %d\n", stats_all.s1.cp_time[0], |
| 225 | stats_all.s1.cp_time[1], stats_all.s1.cp_time[2], stats_all.s1.cp_time[3]); |
| 226 | #endif |
| 227 | |
| 228 | if (lseek(kmem, (long)nl[X_SUM].n_value, 0) ==-1) { |
| 229 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 230 | exit(1); |
| 231 | } |
| 232 | if (read(kmem, (char *)&sum, sizeof sum) != sizeof sum) { |
| 233 | fprintf(stderr, "rstat: can't read sum from kmem\n"); |
| 234 | exit(1); |
| 235 | } |
| 236 | stats_all.s1.v_pgpgin = sum.v_pgpgin; |
| 237 | stats_all.s1.v_pgpgout = sum.v_pgpgout; |
| 238 | stats_all.s1.v_pswpin = sum.v_pswpin; |
| 239 | stats_all.s1.v_pswpout = sum.v_pswpout; |
| 240 | stats_all.s1.v_intr = sum.v_intr; |
| 241 | gettimeofday(&tm, (struct timezone *) 0); |
| 242 | stats_all.s1.v_intr -= hz*(tm.tv_sec - btm.tv_sec) + |
| 243 | hz*(tm.tv_usec - btm.tv_usec)/1000000; |
| 244 | stats_all.s2.v_swtch = sum.v_swtch; |
| 245 | |
| 246 | if (lseek(kmem, (long)nl[X_DKXFER].n_value, 0) == -1) { |
| 247 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 248 | exit(1); |
| 249 | } |
| 250 | if (read(kmem, (char *)stats_all.s1.dk_xfer, sizeof (stats_all.s1.dk_xfer)) |
| 251 | != sizeof (stats_all.s1.dk_xfer)) { |
| 252 | fprintf(stderr, "rstat: can't read dk_xfer from kmem\n"); |
| 253 | exit(1); |
| 254 | } |
| 255 | |
| 256 | stats_all.s1.if_ipackets = 0; |
| 257 | stats_all.s1.if_opackets = 0; |
| 258 | stats_all.s1.if_ierrors = 0; |
| 259 | stats_all.s1.if_oerrors = 0; |
| 260 | stats_all.s1.if_collisions = 0; |
| 261 | for (off = firstifnet, i = 0; off && i < numintfs; i++) { |
| 262 | if (lseek(kmem, (long)off, 0) == -1) { |
| 263 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 264 | exit(1); |
| 265 | } |
| 266 | if (read(kmem, (char *)&ifnet, sizeof ifnet) != sizeof ifnet) { |
| 267 | fprintf(stderr, "rstat: can't read ifnet from kmem\n"); |
| 268 | exit(1); |
| 269 | } |
| 270 | stats_all.s1.if_ipackets += ifnet.if_ipackets; |
| 271 | stats_all.s1.if_opackets += ifnet.if_opackets; |
| 272 | stats_all.s1.if_ierrors += ifnet.if_ierrors; |
| 273 | stats_all.s1.if_oerrors += ifnet.if_oerrors; |
| 274 | stats_all.s1.if_collisions += ifnet.if_collisions; |
| 275 | off = (int) ifnet.if_next; |
| 276 | } |
| 277 | gettimeofday((struct timeval *)&stats_all.s3.curtime, |
| 278 | (struct timezone *) 0); |
| 279 | alarm(1); |
| 280 | } |
| 281 | |
| 282 | static |
| 283 | setup() |
| 284 | { |
| 285 | struct ifnet ifnet; |
| 286 | int off; |
| 287 | |
| 288 | nlist("/vmunix", nl); |
| 289 | if (nl[0].n_value == 0) { |
| 290 | fprintf(stderr, "rstat: Variables missing from namelist\n"); |
| 291 | exit (1); |
| 292 | } |
| 293 | if ((kmem = open("/dev/kmem", 0)) < 0) { |
| 294 | fprintf(stderr, "rstat: can't open kmem\n"); |
| 295 | exit(1); |
| 296 | } |
| 297 | |
| 298 | off = nl[X_IFNET].n_value; |
| 299 | if (lseek(kmem, (long)off, 0) == -1) { |
| 300 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 301 | exit(1); |
| 302 | } |
| 303 | if (read(kmem, (char *)&firstifnet, sizeof(int)) != sizeof (int)) { |
| 304 | fprintf(stderr, "rstat: can't read firstifnet from kmem\n"); |
| 305 | exit(1); |
| 306 | } |
| 307 | numintfs = 0; |
| 308 | for (off = firstifnet; off;) { |
| 309 | if (lseek(kmem, (long)off, 0) == -1) { |
| 310 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 311 | exit(1); |
| 312 | } |
| 313 | if (read(kmem, (char *)&ifnet, sizeof ifnet) != sizeof ifnet) { |
| 314 | fprintf(stderr, "rstat: can't read ifnet from kmem\n"); |
| 315 | exit(1); |
| 316 | } |
| 317 | numintfs++; |
| 318 | off = (int) ifnet.if_next; |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | /* |
| 323 | * returns true if have a disk |
| 324 | */ |
| 325 | static |
| 326 | havedisk() |
| 327 | { |
| 328 | int i, cnt; |
| 329 | long xfer[DK_NDRIVE]; |
| 330 | |
| 331 | nlist("/vmunix", nl); |
| 332 | if (nl[X_DKXFER].n_value == 0) { |
| 333 | fprintf(stderr, "rstat: Variables missing from namelist\n"); |
| 334 | exit (1); |
| 335 | } |
| 336 | if ((kmem = open("/dev/kmem", 0)) < 0) { |
| 337 | fprintf(stderr, "rstat: can't open kmem\n"); |
| 338 | exit(1); |
| 339 | } |
| 340 | if (lseek(kmem, (long)nl[X_DKXFER].n_value, 0) == -1) { |
| 341 | fprintf(stderr, "rstat: can't seek in kmem\n"); |
| 342 | exit(1); |
| 343 | } |
| 344 | if (read(kmem, (char *)xfer, sizeof xfer)!= sizeof xfer) { |
| 345 | fprintf(stderr, "rstat: can't read kmem\n"); |
| 346 | exit(1); |
| 347 | } |
| 348 | cnt = 0; |
| 349 | for (i=0; i < DK_NDRIVE; i++) |
| 350 | cnt += xfer[i]; |
| 351 | return (cnt != 0); |
| 352 | } |