1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */
29*7c478bd9Sstevel@tonic-gate
30*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
31*7c478bd9Sstevel@tonic-gate #include <sys/procset.h>
32*7c478bd9Sstevel@tonic-gate #include <sys/priocntl.h>
33*7c478bd9Sstevel@tonic-gate #include <sys/fsspriocntl.h>
34*7c478bd9Sstevel@tonic-gate #include <string.h>
35*7c478bd9Sstevel@tonic-gate #include <stdio.h>
36*7c478bd9Sstevel@tonic-gate #include <unistd.h>
37*7c478bd9Sstevel@tonic-gate #include <libgen.h>
38*7c478bd9Sstevel@tonic-gate #include <limits.h>
39*7c478bd9Sstevel@tonic-gate #include <errno.h>
40*7c478bd9Sstevel@tonic-gate #include "priocntl.h"
41*7c478bd9Sstevel@tonic-gate
42*7c478bd9Sstevel@tonic-gate /*
43*7c478bd9Sstevel@tonic-gate * This file contains the class specific code implementing the fair-share
44*7c478bd9Sstevel@tonic-gate * scheduler priocntl sub-command.
45*7c478bd9Sstevel@tonic-gate */
46*7c478bd9Sstevel@tonic-gate #define ADDKEYVAL(p, k, v) { (p[0]) = (k); (p[1]) = (v); p += 2; }
47*7c478bd9Sstevel@tonic-gate #define FSS_KEYCNT 2 /* max number of (key, value) pairs */
48*7c478bd9Sstevel@tonic-gate
49*7c478bd9Sstevel@tonic-gate /*
50*7c478bd9Sstevel@tonic-gate * Control flags
51*7c478bd9Sstevel@tonic-gate */
52*7c478bd9Sstevel@tonic-gate #define FSS_DOUPRILIM 0x01 /* user priority limit */
53*7c478bd9Sstevel@tonic-gate #define FSS_DOUPRI 0x02 /* user priority */
54*7c478bd9Sstevel@tonic-gate
55*7c478bd9Sstevel@tonic-gate static void print_fssinfo(void);
56*7c478bd9Sstevel@tonic-gate static int print_fssprocs(void);
57*7c478bd9Sstevel@tonic-gate static int fss_priocntl(idtype_t, id_t, int, char *, uintptr_t *);
58*7c478bd9Sstevel@tonic-gate static int set_fssprocs(idtype_t, int, char **, uint_t, pri_t, pri_t);
59*7c478bd9Sstevel@tonic-gate static void exec_fsscmd(char **, uint_t, pri_t, pri_t);
60*7c478bd9Sstevel@tonic-gate
61*7c478bd9Sstevel@tonic-gate static char usage[] =
62*7c478bd9Sstevel@tonic-gate "usage: priocntl -l\n"
63*7c478bd9Sstevel@tonic-gate " priocntl -d [-d idtype] [idlist]\n"
64*7c478bd9Sstevel@tonic-gate " priocntl -s [-c FSS] [-m fssuprilim] [-p fssupri] [-i idtype] "
65*7c478bd9Sstevel@tonic-gate "[idlist]\n"
66*7c478bd9Sstevel@tonic-gate " priocntl -e [-c FSS] [-m fssuprilim] [-p fssupri] command [argument(s)]"
67*7c478bd9Sstevel@tonic-gate "\n";
68*7c478bd9Sstevel@tonic-gate
69*7c478bd9Sstevel@tonic-gate static char cmdpath[MAXPATHLEN];
70*7c478bd9Sstevel@tonic-gate static char basenm[BASENMSZ];
71*7c478bd9Sstevel@tonic-gate
72*7c478bd9Sstevel@tonic-gate
73*7c478bd9Sstevel@tonic-gate int
main(int argc,char * argv[])74*7c478bd9Sstevel@tonic-gate main(int argc, char *argv[])
75*7c478bd9Sstevel@tonic-gate {
76*7c478bd9Sstevel@tonic-gate int c;
77*7c478bd9Sstevel@tonic-gate int lflag, dflag, sflag, mflag, pflag, eflag, iflag;
78*7c478bd9Sstevel@tonic-gate pri_t fssuprilim;
79*7c478bd9Sstevel@tonic-gate pri_t fssupri;
80*7c478bd9Sstevel@tonic-gate char *idtypnm;
81*7c478bd9Sstevel@tonic-gate idtype_t idtype;
82*7c478bd9Sstevel@tonic-gate int idargc;
83*7c478bd9Sstevel@tonic-gate uint_t cflags;
84*7c478bd9Sstevel@tonic-gate
85*7c478bd9Sstevel@tonic-gate (void) strlcpy(cmdpath, argv[0], MAXPATHLEN);
86*7c478bd9Sstevel@tonic-gate (void) strlcpy(basenm, basename(argv[0]), BASENMSZ);
87*7c478bd9Sstevel@tonic-gate lflag = dflag = sflag = mflag = pflag = eflag = iflag = 0;
88*7c478bd9Sstevel@tonic-gate while ((c = getopt(argc, argv, "ldsm:p:ec:i:")) != -1) {
89*7c478bd9Sstevel@tonic-gate switch (c) {
90*7c478bd9Sstevel@tonic-gate case 'l':
91*7c478bd9Sstevel@tonic-gate lflag++;
92*7c478bd9Sstevel@tonic-gate break;
93*7c478bd9Sstevel@tonic-gate case 'd':
94*7c478bd9Sstevel@tonic-gate dflag++;
95*7c478bd9Sstevel@tonic-gate break;
96*7c478bd9Sstevel@tonic-gate case 's':
97*7c478bd9Sstevel@tonic-gate sflag++;
98*7c478bd9Sstevel@tonic-gate break;
99*7c478bd9Sstevel@tonic-gate case 'm':
100*7c478bd9Sstevel@tonic-gate mflag++;
101*7c478bd9Sstevel@tonic-gate fssuprilim = (pri_t)str2num(optarg, SHRT_MIN, SHRT_MAX);
102*7c478bd9Sstevel@tonic-gate if (errno)
103*7c478bd9Sstevel@tonic-gate fatalerr("%s: Specified user priority limit %s "
104*7c478bd9Sstevel@tonic-gate "out of configured range\n",
105*7c478bd9Sstevel@tonic-gate basenm, optarg);
106*7c478bd9Sstevel@tonic-gate break;
107*7c478bd9Sstevel@tonic-gate case 'p':
108*7c478bd9Sstevel@tonic-gate pflag++;
109*7c478bd9Sstevel@tonic-gate fssupri = (pri_t)str2num(optarg, SHRT_MIN, SHRT_MAX);
110*7c478bd9Sstevel@tonic-gate if (errno)
111*7c478bd9Sstevel@tonic-gate fatalerr("%s: Specified user priority %s "
112*7c478bd9Sstevel@tonic-gate "out of configured range\n",
113*7c478bd9Sstevel@tonic-gate basenm, optarg);
114*7c478bd9Sstevel@tonic-gate break;
115*7c478bd9Sstevel@tonic-gate case 'e':
116*7c478bd9Sstevel@tonic-gate eflag++;
117*7c478bd9Sstevel@tonic-gate break;
118*7c478bd9Sstevel@tonic-gate case 'c':
119*7c478bd9Sstevel@tonic-gate if (strcmp(optarg, "FSS") != 0)
120*7c478bd9Sstevel@tonic-gate fatalerr("error: %s executed for %s class, %s "
121*7c478bd9Sstevel@tonic-gate "is actually sub-command for FSS class\n",
122*7c478bd9Sstevel@tonic-gate cmdpath, optarg, cmdpath);
123*7c478bd9Sstevel@tonic-gate break;
124*7c478bd9Sstevel@tonic-gate case 'i':
125*7c478bd9Sstevel@tonic-gate iflag++;
126*7c478bd9Sstevel@tonic-gate idtypnm = optarg;
127*7c478bd9Sstevel@tonic-gate break;
128*7c478bd9Sstevel@tonic-gate case '?':
129*7c478bd9Sstevel@tonic-gate fatalerr(usage);
130*7c478bd9Sstevel@tonic-gate default:
131*7c478bd9Sstevel@tonic-gate break;
132*7c478bd9Sstevel@tonic-gate }
133*7c478bd9Sstevel@tonic-gate }
134*7c478bd9Sstevel@tonic-gate
135*7c478bd9Sstevel@tonic-gate if (lflag) {
136*7c478bd9Sstevel@tonic-gate if (dflag || sflag || mflag || pflag || eflag || iflag)
137*7c478bd9Sstevel@tonic-gate fatalerr(usage);
138*7c478bd9Sstevel@tonic-gate
139*7c478bd9Sstevel@tonic-gate print_fssinfo();
140*7c478bd9Sstevel@tonic-gate
141*7c478bd9Sstevel@tonic-gate } else if (dflag) {
142*7c478bd9Sstevel@tonic-gate if (lflag || sflag || mflag || pflag || eflag)
143*7c478bd9Sstevel@tonic-gate fatalerr(usage);
144*7c478bd9Sstevel@tonic-gate
145*7c478bd9Sstevel@tonic-gate return (print_fssprocs());
146*7c478bd9Sstevel@tonic-gate
147*7c478bd9Sstevel@tonic-gate } else if (sflag) {
148*7c478bd9Sstevel@tonic-gate if (lflag || dflag || eflag)
149*7c478bd9Sstevel@tonic-gate fatalerr(usage);
150*7c478bd9Sstevel@tonic-gate
151*7c478bd9Sstevel@tonic-gate if (iflag) {
152*7c478bd9Sstevel@tonic-gate if (str2idtyp(idtypnm, &idtype) == -1)
153*7c478bd9Sstevel@tonic-gate fatalerr("%s: Bad idtype %s\n", basenm,
154*7c478bd9Sstevel@tonic-gate idtypnm);
155*7c478bd9Sstevel@tonic-gate } else {
156*7c478bd9Sstevel@tonic-gate idtype = P_PID;
157*7c478bd9Sstevel@tonic-gate }
158*7c478bd9Sstevel@tonic-gate
159*7c478bd9Sstevel@tonic-gate cflags = (pflag ? FSS_DOUPRI : 0);
160*7c478bd9Sstevel@tonic-gate
161*7c478bd9Sstevel@tonic-gate if (mflag)
162*7c478bd9Sstevel@tonic-gate cflags |= FSS_DOUPRILIM;
163*7c478bd9Sstevel@tonic-gate
164*7c478bd9Sstevel@tonic-gate if (optind < argc)
165*7c478bd9Sstevel@tonic-gate idargc = argc - optind;
166*7c478bd9Sstevel@tonic-gate else
167*7c478bd9Sstevel@tonic-gate idargc = 0;
168*7c478bd9Sstevel@tonic-gate
169*7c478bd9Sstevel@tonic-gate return (set_fssprocs(idtype, idargc, &argv[optind], cflags,
170*7c478bd9Sstevel@tonic-gate fssuprilim, fssupri));
171*7c478bd9Sstevel@tonic-gate
172*7c478bd9Sstevel@tonic-gate } else if (eflag) {
173*7c478bd9Sstevel@tonic-gate if (lflag || dflag || sflag || iflag)
174*7c478bd9Sstevel@tonic-gate fatalerr(usage);
175*7c478bd9Sstevel@tonic-gate
176*7c478bd9Sstevel@tonic-gate cflags = (pflag ? FSS_DOUPRI : 0);
177*7c478bd9Sstevel@tonic-gate
178*7c478bd9Sstevel@tonic-gate if (mflag)
179*7c478bd9Sstevel@tonic-gate cflags |= FSS_DOUPRILIM;
180*7c478bd9Sstevel@tonic-gate
181*7c478bd9Sstevel@tonic-gate exec_fsscmd(&argv[optind], cflags, fssuprilim, fssupri);
182*7c478bd9Sstevel@tonic-gate
183*7c478bd9Sstevel@tonic-gate } else {
184*7c478bd9Sstevel@tonic-gate fatalerr(usage);
185*7c478bd9Sstevel@tonic-gate }
186*7c478bd9Sstevel@tonic-gate
187*7c478bd9Sstevel@tonic-gate return (0);
188*7c478bd9Sstevel@tonic-gate }
189*7c478bd9Sstevel@tonic-gate
190*7c478bd9Sstevel@tonic-gate /*
191*7c478bd9Sstevel@tonic-gate * Print our class name and the configured user priority range.
192*7c478bd9Sstevel@tonic-gate */
193*7c478bd9Sstevel@tonic-gate static void
print_fssinfo(void)194*7c478bd9Sstevel@tonic-gate print_fssinfo(void)
195*7c478bd9Sstevel@tonic-gate {
196*7c478bd9Sstevel@tonic-gate pcinfo_t pcinfo;
197*7c478bd9Sstevel@tonic-gate
198*7c478bd9Sstevel@tonic-gate (void) strcpy(pcinfo.pc_clname, "FSS");
199*7c478bd9Sstevel@tonic-gate
200*7c478bd9Sstevel@tonic-gate (void) printf("FSS (Fair Share)\n");
201*7c478bd9Sstevel@tonic-gate
202*7c478bd9Sstevel@tonic-gate if (priocntl(0, 0, PC_GETCID, (caddr_t)&pcinfo) == -1)
203*7c478bd9Sstevel@tonic-gate fatalerr("\tCan't get configured FSS user priority range\n");
204*7c478bd9Sstevel@tonic-gate
205*7c478bd9Sstevel@tonic-gate (void) printf("\tConfigured FSS User Priority Range: -%d through %d\n",
206*7c478bd9Sstevel@tonic-gate ((fssinfo_t *)pcinfo.pc_clinfo)->fss_maxupri,
207*7c478bd9Sstevel@tonic-gate ((fssinfo_t *)pcinfo.pc_clinfo)->fss_maxupri);
208*7c478bd9Sstevel@tonic-gate }
209*7c478bd9Sstevel@tonic-gate
210*7c478bd9Sstevel@tonic-gate /*
211*7c478bd9Sstevel@tonic-gate * Read a list of pids from stdin and print the user priority and user
212*7c478bd9Sstevel@tonic-gate * priority limit for each of the corresponding processes.
213*7c478bd9Sstevel@tonic-gate */
214*7c478bd9Sstevel@tonic-gate static int
print_fssprocs(void)215*7c478bd9Sstevel@tonic-gate print_fssprocs(void)
216*7c478bd9Sstevel@tonic-gate {
217*7c478bd9Sstevel@tonic-gate pid_t *pidlist;
218*7c478bd9Sstevel@tonic-gate size_t numread;
219*7c478bd9Sstevel@tonic-gate int i;
220*7c478bd9Sstevel@tonic-gate char clname[PC_CLNMSZ];
221*7c478bd9Sstevel@tonic-gate pri_t fssuprilim;
222*7c478bd9Sstevel@tonic-gate pri_t fssupri;
223*7c478bd9Sstevel@tonic-gate int error = 0;
224*7c478bd9Sstevel@tonic-gate
225*7c478bd9Sstevel@tonic-gate /*
226*7c478bd9Sstevel@tonic-gate * Read a list of pids from stdin.
227*7c478bd9Sstevel@tonic-gate */
228*7c478bd9Sstevel@tonic-gate if ((pidlist = read_pidlist(&numread, stdin)) == NULL)
229*7c478bd9Sstevel@tonic-gate fatalerr("%s: Can't read pidlist.\n", basenm);
230*7c478bd9Sstevel@tonic-gate
231*7c478bd9Sstevel@tonic-gate (void) printf("FAIR SHARING PROCESSES:\n"
232*7c478bd9Sstevel@tonic-gate " PID FSSUPRILIM FSSUPRI\n");
233*7c478bd9Sstevel@tonic-gate
234*7c478bd9Sstevel@tonic-gate if (numread == 0)
235*7c478bd9Sstevel@tonic-gate fatalerr("%s: No pids on input\n", basenm);
236*7c478bd9Sstevel@tonic-gate
237*7c478bd9Sstevel@tonic-gate for (i = 0; i < numread; i++) {
238*7c478bd9Sstevel@tonic-gate (void) printf("%7ld", pidlist[i]);
239*7c478bd9Sstevel@tonic-gate if (priocntl(P_PID, pidlist[i], PC_GETXPARMS, "FSS",
240*7c478bd9Sstevel@tonic-gate FSS_KY_UPRI, &fssupri,
241*7c478bd9Sstevel@tonic-gate FSS_KY_UPRILIM, &fssuprilim, 0) != -1) {
242*7c478bd9Sstevel@tonic-gate (void) printf(" %5d %5d\n",
243*7c478bd9Sstevel@tonic-gate fssuprilim, fssupri);
244*7c478bd9Sstevel@tonic-gate } else {
245*7c478bd9Sstevel@tonic-gate error = 1;
246*7c478bd9Sstevel@tonic-gate
247*7c478bd9Sstevel@tonic-gate if (priocntl(P_PID, pidlist[i], PC_GETXPARMS, NULL,
248*7c478bd9Sstevel@tonic-gate PC_KY_CLNAME, clname, 0) == -1 &&
249*7c478bd9Sstevel@tonic-gate strcmp(clname, "FSS"))
250*7c478bd9Sstevel@tonic-gate /*
251*7c478bd9Sstevel@tonic-gate * Process from some class other than fair
252*7c478bd9Sstevel@tonic-gate * sharing. It has probably changed class while
253*7c478bd9Sstevel@tonic-gate * priocntl command was executing (otherwise
254*7c478bd9Sstevel@tonic-gate * we wouldn't have been passed its pid).
255*7c478bd9Sstevel@tonic-gate * Print the little we know about it.
256*7c478bd9Sstevel@tonic-gate */
257*7c478bd9Sstevel@tonic-gate (void) printf("\tChanged to class %s while"
258*7c478bd9Sstevel@tonic-gate " priocntl command executing\n", clname);
259*7c478bd9Sstevel@tonic-gate else
260*7c478bd9Sstevel@tonic-gate (void) printf("\tCan't get FSS user priority"
261*7c478bd9Sstevel@tonic-gate "\n");
262*7c478bd9Sstevel@tonic-gate }
263*7c478bd9Sstevel@tonic-gate }
264*7c478bd9Sstevel@tonic-gate
265*7c478bd9Sstevel@tonic-gate free_pidlist(pidlist);
266*7c478bd9Sstevel@tonic-gate return (error);
267*7c478bd9Sstevel@tonic-gate }
268*7c478bd9Sstevel@tonic-gate
269*7c478bd9Sstevel@tonic-gate /*
270*7c478bd9Sstevel@tonic-gate * Call priocntl() with command codes PC_SETXPARMS or PC_GETXPARMS. The
271*7c478bd9Sstevel@tonic-gate * first parameter behind the command code is always the class name.
272*7c478bd9Sstevel@tonic-gate * Each parameter is headed by a key, which detemines the meanin of the
273*7c478bd9Sstevel@tonic-gate * following value. There is maximum FSS_KEYCNT == 2 of (key, value) pairs.
274*7c478bd9Sstevel@tonic-gate */
275*7c478bd9Sstevel@tonic-gate static int
fss_priocntl(idtype_t idtype,id_t id,int cmd,char * clname,uintptr_t * argsp)276*7c478bd9Sstevel@tonic-gate fss_priocntl(idtype_t idtype, id_t id, int cmd, char *clname, uintptr_t *argsp)
277*7c478bd9Sstevel@tonic-gate {
278*7c478bd9Sstevel@tonic-gate return (priocntl(idtype, id, cmd, clname, argsp[0], argsp[1],
279*7c478bd9Sstevel@tonic-gate argsp[2], argsp[3], 0));
280*7c478bd9Sstevel@tonic-gate }
281*7c478bd9Sstevel@tonic-gate
282*7c478bd9Sstevel@tonic-gate /*
283*7c478bd9Sstevel@tonic-gate * Set all processes in the set specified by idtype/idargv to fair-sharing
284*7c478bd9Sstevel@tonic-gate * (if they aren't already fair-sharing) and set their user priority limit
285*7c478bd9Sstevel@tonic-gate * and user priority to those specified by fssuprilim and fssupri.
286*7c478bd9Sstevel@tonic-gate */
287*7c478bd9Sstevel@tonic-gate static int
set_fssprocs(idtype_t idtype,int idargc,char ** idargv,uint_t cflags,short fssuprilim,short fssupri)288*7c478bd9Sstevel@tonic-gate set_fssprocs(idtype_t idtype, int idargc, char **idargv, uint_t cflags,
289*7c478bd9Sstevel@tonic-gate short fssuprilim, short fssupri)
290*7c478bd9Sstevel@tonic-gate {
291*7c478bd9Sstevel@tonic-gate pcinfo_t pcinfo;
292*7c478bd9Sstevel@tonic-gate uintptr_t args[2 * FSS_KEYCNT + 1];
293*7c478bd9Sstevel@tonic-gate uintptr_t *argsp = &args[0];
294*7c478bd9Sstevel@tonic-gate pri_t maxupri;
295*7c478bd9Sstevel@tonic-gate char idtypnm[PC_IDTYPNMSZ];
296*7c478bd9Sstevel@tonic-gate int i;
297*7c478bd9Sstevel@tonic-gate int error = 0;
298*7c478bd9Sstevel@tonic-gate id_t id;
299*7c478bd9Sstevel@tonic-gate
300*7c478bd9Sstevel@tonic-gate /*
301*7c478bd9Sstevel@tonic-gate * Get the fair sharing class ID and max configured user priority.
302*7c478bd9Sstevel@tonic-gate */
303*7c478bd9Sstevel@tonic-gate (void) strcpy(pcinfo.pc_clname, "FSS");
304*7c478bd9Sstevel@tonic-gate if (priocntl(0, 0, PC_GETCID, (caddr_t)&pcinfo) == -1)
305*7c478bd9Sstevel@tonic-gate fatalerr("%s: Can't get FSS class ID, priocntl system call "
306*7c478bd9Sstevel@tonic-gate "failed (%s)\n", basenm, strerror(errno));
307*7c478bd9Sstevel@tonic-gate maxupri = ((fssinfo_t *)pcinfo.pc_clinfo)->fss_maxupri;
308*7c478bd9Sstevel@tonic-gate
309*7c478bd9Sstevel@tonic-gate /*
310*7c478bd9Sstevel@tonic-gate * Validate the fssuprilim and fssupri arguments.
311*7c478bd9Sstevel@tonic-gate */
312*7c478bd9Sstevel@tonic-gate if ((cflags & FSS_DOUPRILIM) != 0) {
313*7c478bd9Sstevel@tonic-gate if (fssuprilim > maxupri || fssuprilim < -maxupri)
314*7c478bd9Sstevel@tonic-gate fatalerr("%s: Specified user priority limit %d out of "
315*7c478bd9Sstevel@tonic-gate "configured range\n", basenm, fssuprilim);
316*7c478bd9Sstevel@tonic-gate ADDKEYVAL(argsp, FSS_KY_UPRILIM, fssuprilim);
317*7c478bd9Sstevel@tonic-gate }
318*7c478bd9Sstevel@tonic-gate
319*7c478bd9Sstevel@tonic-gate if ((cflags & FSS_DOUPRI) != 0) {
320*7c478bd9Sstevel@tonic-gate if (fssupri > maxupri || fssupri < -maxupri)
321*7c478bd9Sstevel@tonic-gate fatalerr("%s: Specified user priority %d out of "
322*7c478bd9Sstevel@tonic-gate "configured range\n", basenm, fssupri);
323*7c478bd9Sstevel@tonic-gate ADDKEYVAL(argsp, FSS_KY_UPRI, fssupri);
324*7c478bd9Sstevel@tonic-gate }
325*7c478bd9Sstevel@tonic-gate *argsp = 0;
326*7c478bd9Sstevel@tonic-gate
327*7c478bd9Sstevel@tonic-gate if (idtype == P_ALL) {
328*7c478bd9Sstevel@tonic-gate if (fss_priocntl(P_ALL, 0, PC_SETXPARMS, "FSS", args) == -1) {
329*7c478bd9Sstevel@tonic-gate if (errno == EPERM) {
330*7c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "Permissions error "
331*7c478bd9Sstevel@tonic-gate "encountered on one or more processes.\n");
332*7c478bd9Sstevel@tonic-gate error = 1;
333*7c478bd9Sstevel@tonic-gate } else {
334*7c478bd9Sstevel@tonic-gate fatalerr("%s: Can't reset fair sharing "
335*7c478bd9Sstevel@tonic-gate "parameters\npriocntl system call failed "
336*7c478bd9Sstevel@tonic-gate "(%s)\n", basenm, strerror(errno));
337*7c478bd9Sstevel@tonic-gate }
338*7c478bd9Sstevel@tonic-gate } else if ((cflags & (FSS_DOUPRILIM|FSS_DOUPRI)) ==
339*7c478bd9Sstevel@tonic-gate FSS_DOUPRI) {
340*7c478bd9Sstevel@tonic-gate (void) verifyupri(idtype, 0, "FSS", FSS_KY_UPRILIM,
341*7c478bd9Sstevel@tonic-gate fssupri, basenm);
342*7c478bd9Sstevel@tonic-gate }
343*7c478bd9Sstevel@tonic-gate } else if (idargc == 0) {
344*7c478bd9Sstevel@tonic-gate if (fss_priocntl(idtype, P_MYID, PC_SETXPARMS, "FSS",
345*7c478bd9Sstevel@tonic-gate args) == -1) {
346*7c478bd9Sstevel@tonic-gate if (errno == EPERM) {
347*7c478bd9Sstevel@tonic-gate (void) idtyp2str(idtype, idtypnm);
348*7c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "Permissions error "
349*7c478bd9Sstevel@tonic-gate "encountered on current %s.\n", idtypnm);
350*7c478bd9Sstevel@tonic-gate error = 1;
351*7c478bd9Sstevel@tonic-gate } else {
352*7c478bd9Sstevel@tonic-gate fatalerr("%s: Can't reset fair sharing "
353*7c478bd9Sstevel@tonic-gate "parameters\npriocntl system call failed "
354*7c478bd9Sstevel@tonic-gate "(%s)\n", basenm, strerror(errno));
355*7c478bd9Sstevel@tonic-gate }
356*7c478bd9Sstevel@tonic-gate } else if ((cflags & (FSS_DOUPRILIM|FSS_DOUPRI)) ==
357*7c478bd9Sstevel@tonic-gate FSS_DOUPRI && getmyid(idtype, &id) != -1) {
358*7c478bd9Sstevel@tonic-gate (void) verifyupri(idtype, id, "FSS", FSS_KY_UPRILIM,
359*7c478bd9Sstevel@tonic-gate fssupri, basenm);
360*7c478bd9Sstevel@tonic-gate }
361*7c478bd9Sstevel@tonic-gate } else {
362*7c478bd9Sstevel@tonic-gate (void) idtyp2str(idtype, idtypnm);
363*7c478bd9Sstevel@tonic-gate for (i = 0; i < idargc; i++) {
364*7c478bd9Sstevel@tonic-gate if (idtype == P_CID) {
365*7c478bd9Sstevel@tonic-gate (void) strcpy(pcinfo.pc_clname, idargv[i]);
366*7c478bd9Sstevel@tonic-gate if (priocntl(0, 0, PC_GETCID,
367*7c478bd9Sstevel@tonic-gate (caddr_t)&pcinfo) == -1)
368*7c478bd9Sstevel@tonic-gate fatalerr("%s: Invalid or unconfigured "
369*7c478bd9Sstevel@tonic-gate "class %s, priocntl system call "
370*7c478bd9Sstevel@tonic-gate "failed (%s)\n",
371*7c478bd9Sstevel@tonic-gate basenm, pcinfo.pc_clname,
372*7c478bd9Sstevel@tonic-gate strerror(errno));
373*7c478bd9Sstevel@tonic-gate id = pcinfo.pc_cid;
374*7c478bd9Sstevel@tonic-gate } else {
375*7c478bd9Sstevel@tonic-gate id = (id_t)str2num(idargv[i], INT_MIN, INT_MAX);
376*7c478bd9Sstevel@tonic-gate if (errno)
377*7c478bd9Sstevel@tonic-gate fatalerr("%s: Invalid id \"%s\"\n",
378*7c478bd9Sstevel@tonic-gate basenm, idargv[i]);
379*7c478bd9Sstevel@tonic-gate }
380*7c478bd9Sstevel@tonic-gate
381*7c478bd9Sstevel@tonic-gate if (fss_priocntl(idtype, id, PC_SETXPARMS, "FSS",
382*7c478bd9Sstevel@tonic-gate args) == -1) {
383*7c478bd9Sstevel@tonic-gate if (errno == EPERM) {
384*7c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "Permissions "
385*7c478bd9Sstevel@tonic-gate "error encountered on %s %s.\n",
386*7c478bd9Sstevel@tonic-gate idtypnm, idargv[i]);
387*7c478bd9Sstevel@tonic-gate error = 1;
388*7c478bd9Sstevel@tonic-gate } else {
389*7c478bd9Sstevel@tonic-gate fatalerr("%s: Can't reset fair sharing"
390*7c478bd9Sstevel@tonic-gate " parameters\npriocntl system call"
391*7c478bd9Sstevel@tonic-gate " failed (%s)\n",
392*7c478bd9Sstevel@tonic-gate basenm, strerror(errno));
393*7c478bd9Sstevel@tonic-gate }
394*7c478bd9Sstevel@tonic-gate } else if ((cflags & (FSS_DOUPRILIM|FSS_DOUPRI)) ==
395*7c478bd9Sstevel@tonic-gate FSS_DOUPRI) {
396*7c478bd9Sstevel@tonic-gate (void) verifyupri(idtype, id, "FSS",
397*7c478bd9Sstevel@tonic-gate FSS_KY_UPRILIM, fssupri, basenm);
398*7c478bd9Sstevel@tonic-gate }
399*7c478bd9Sstevel@tonic-gate }
400*7c478bd9Sstevel@tonic-gate }
401*7c478bd9Sstevel@tonic-gate
402*7c478bd9Sstevel@tonic-gate return (error);
403*7c478bd9Sstevel@tonic-gate }
404*7c478bd9Sstevel@tonic-gate
405*7c478bd9Sstevel@tonic-gate /*
406*7c478bd9Sstevel@tonic-gate * Execute the command pointed to by cmdargv as a fair-sharing process
407*7c478bd9Sstevel@tonic-gate * with the user priority limit given by fssuprilim and user priority fssupri.
408*7c478bd9Sstevel@tonic-gate */
409*7c478bd9Sstevel@tonic-gate static void
exec_fsscmd(char ** cmdargv,uint_t cflags,pri_t fssuprilim,pri_t fssupri)410*7c478bd9Sstevel@tonic-gate exec_fsscmd(char **cmdargv, uint_t cflags, pri_t fssuprilim, pri_t fssupri)
411*7c478bd9Sstevel@tonic-gate {
412*7c478bd9Sstevel@tonic-gate pcinfo_t pcinfo;
413*7c478bd9Sstevel@tonic-gate uintptr_t args[2 * FSS_KEYCNT + 1];
414*7c478bd9Sstevel@tonic-gate uintptr_t *argsp = &args[0];
415*7c478bd9Sstevel@tonic-gate pri_t maxupri;
416*7c478bd9Sstevel@tonic-gate pri_t uprilim;
417*7c478bd9Sstevel@tonic-gate
418*7c478bd9Sstevel@tonic-gate /*
419*7c478bd9Sstevel@tonic-gate * Get the fair sharing class ID and max configured user priority.
420*7c478bd9Sstevel@tonic-gate */
421*7c478bd9Sstevel@tonic-gate (void) strcpy(pcinfo.pc_clname, "FSS");
422*7c478bd9Sstevel@tonic-gate if (priocntl(0, 0, PC_GETCID, (caddr_t)&pcinfo) == -1)
423*7c478bd9Sstevel@tonic-gate fatalerr("%s: Can't get FSS class ID, priocntl system call "
424*7c478bd9Sstevel@tonic-gate "failed (%s)\n", basenm, strerror(errno));
425*7c478bd9Sstevel@tonic-gate maxupri = ((fssinfo_t *)pcinfo.pc_clinfo)->fss_maxupri;
426*7c478bd9Sstevel@tonic-gate
427*7c478bd9Sstevel@tonic-gate if ((cflags & FSS_DOUPRILIM) != 0) {
428*7c478bd9Sstevel@tonic-gate if (fssuprilim > maxupri || fssuprilim < -maxupri)
429*7c478bd9Sstevel@tonic-gate fatalerr("%s: Specified user priority limit %d out of "
430*7c478bd9Sstevel@tonic-gate "configured range\n", basenm, fssuprilim);
431*7c478bd9Sstevel@tonic-gate ADDKEYVAL(argsp, FSS_KY_UPRILIM, fssuprilim);
432*7c478bd9Sstevel@tonic-gate }
433*7c478bd9Sstevel@tonic-gate
434*7c478bd9Sstevel@tonic-gate if ((cflags & FSS_DOUPRI) != 0) {
435*7c478bd9Sstevel@tonic-gate if (fssupri > maxupri || fssupri < -maxupri)
436*7c478bd9Sstevel@tonic-gate fatalerr("%s: Specified user priority %d out of "
437*7c478bd9Sstevel@tonic-gate "configured range\n", basenm, fssupri);
438*7c478bd9Sstevel@tonic-gate ADDKEYVAL(argsp, FSS_KY_UPRI, fssupri);
439*7c478bd9Sstevel@tonic-gate }
440*7c478bd9Sstevel@tonic-gate *argsp = 0;
441*7c478bd9Sstevel@tonic-gate
442*7c478bd9Sstevel@tonic-gate if (fss_priocntl(P_PID, P_MYID, PC_SETXPARMS, "FSS", args) == -1)
443*7c478bd9Sstevel@tonic-gate fatalerr("%s: Can't reset fair sharing parameters\n"
444*7c478bd9Sstevel@tonic-gate "priocntl system call failed (%s)\n",
445*7c478bd9Sstevel@tonic-gate basenm, strerror(errno));
446*7c478bd9Sstevel@tonic-gate
447*7c478bd9Sstevel@tonic-gate if ((cflags & (FSS_DOUPRILIM|FSS_DOUPRI)) == FSS_DOUPRI) {
448*7c478bd9Sstevel@tonic-gate if (priocntl(P_PID, P_MYID, PC_GETXPARMS, "FSS",
449*7c478bd9Sstevel@tonic-gate FSS_KY_UPRILIM, &uprilim, 0) != -1 && fssupri > uprilim)
450*7c478bd9Sstevel@tonic-gate (void) fprintf(stderr,
451*7c478bd9Sstevel@tonic-gate "%s: Specified user priority %d exceeds"
452*7c478bd9Sstevel@tonic-gate " limit %d; set to %d (pid %d)\n",
453*7c478bd9Sstevel@tonic-gate basenm, fssupri, uprilim, uprilim, (int)getpid());
454*7c478bd9Sstevel@tonic-gate }
455*7c478bd9Sstevel@tonic-gate
456*7c478bd9Sstevel@tonic-gate (void) execvp(cmdargv[0], cmdargv);
457*7c478bd9Sstevel@tonic-gate fatalerr("%s: Can't execute %s, exec failed (%s)\n",
458*7c478bd9Sstevel@tonic-gate basenm, cmdargv[0], strerror(errno));
459*7c478bd9Sstevel@tonic-gate }
460