/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "utils.h" #include "rcapd.h" #include "rcapd_conf.h" #include "rcapd_stat.h" #define RCAP_FMRI "system/rcap:default" static void usage() { (void) fprintf(stderr, gettext("usage: rcapadm\n" " [-E|-D] " "# enable/disable rcapd\n" " [-n] " "# don't start/stop rcapd\n" " [-i =value] " "# set intervals\n" " [-c ] " "# set memory cap\n" " " "# enforcement threshold\n" " [-z -m ] " "# update zone memory cap\n")); exit(E_USAGE); } static rcfg_t conf; static int enable = -1; static int disable = -1; static int pressure = -1; static int no_starting_stopping = -1; static int scan_interval = -1; static int report_interval = -1; static int config_interval = -1; static int sample_interval = -1; static char *fname = RCAPD_DEFAULT_CONF_FILE; static char *subopt_v[] = { "scan", "sample", "report", "config", NULL }; typedef enum { OPT_SCAN = 0, OPT_SAMPLE, OPT_REPORT, OPT_CONFIG } subopt_idx_t; static void print_state(void) { scf_simple_prop_t *persistent_prop = NULL; scf_simple_prop_t *temporary_prop = NULL; uint8_t *persistent = NULL; uint8_t *temporary = NULL; scf_handle_t *h; /* LINTED: conditionally assigned and used in function */ ssize_t numvals; if ((h = scf_handle_create(SCF_VERSION)) == NULL || scf_handle_bind(h) != 0) goto out; if ((persistent_prop = scf_simple_prop_get(h, RCAP_FMRI, SCF_PG_GENERAL, SCF_PROPERTY_ENABLED)) != NULL && (numvals = scf_simple_prop_numvalues(persistent_prop)) > 0) persistent = scf_simple_prop_next_boolean(persistent_prop); if ((temporary_prop = scf_simple_prop_get(h, RCAP_FMRI, SCF_PG_GENERAL_OVR, SCF_PROPERTY_ENABLED)) != NULL && (numvals = scf_simple_prop_numvalues(temporary_prop)) > 0) temporary = scf_simple_prop_next_boolean(temporary_prop); out: if (!persistent) (void) printf(gettext(" " "state: unknown")); else if (temporary && *temporary != *persistent) (void) printf(gettext(" " "state: %s (%s at next boot)\n"), *temporary ? gettext("enabled") : gettext("disabled"), *persistent ? gettext("enabled") : gettext("disabled")); else (void) printf(gettext(" " "state: %s\n"), *persistent ? gettext("enabled") : gettext("disabled")); scf_simple_prop_free(temporary_prop); scf_simple_prop_free(persistent_prop); scf_handle_destroy(h); } /* * Update the in-kernel memory cap for the specified zone. */ static int update_zone_mcap(char *zonename, char *maxrss) { zoneid_t zone_id; uint64_t num; if (getzoneid() != GLOBAL_ZONEID || zonecfg_in_alt_root()) return (E_SUCCESS); /* get the running zone from the kernel */ if ((zone_id = getzoneidbyname(zonename)) == -1) { (void) fprintf(stderr, gettext("zone '%s' must be running\n"), zonename); return (E_ERROR); } if (zonecfg_str_to_bytes(maxrss, &num) == -1) { (void) fprintf(stderr, gettext("invalid max-rss value\n")); return (E_ERROR); } if (zone_setattr(zone_id, ZONE_ATTR_PHYS_MCAP, &num, 0) == -1) { (void) fprintf(stderr, gettext("could not set memory " "cap for zone '%s'\n"), zonename); return (E_ERROR); } return (E_SUCCESS); } int main(int argc, char *argv[]) { char *subopts, *optval; int modified = 0; boolean_t refresh = B_FALSE; int opt; char *zonename; char *maxrss = NULL; (void) setprogname("rcapadm"); (void) setlocale(LC_ALL, ""); (void) textdomain(TEXT_DOMAIN); while ((opt = getopt(argc, argv, "DEc:i:m:nz:")) != EOF) { switch (opt) { case 'n': no_starting_stopping = 1; break; case 'c': if ((pressure = xatoi(optarg)) < 0 || pressure > 100 || errno == EINVAL) usage(); modified++; break; case 'E': enable = 1; disable = 0; modified++; break; case 'D': disable = 1; enable = 0; modified++; break; case 'i': subopts = optarg; while (*subopts != '\0') { switch (getsubopt(&subopts, subopt_v, &optval)) { case OPT_SCAN: if (optval == NULL || (scan_interval = xatoi(optval)) <= 0) usage(); break; case OPT_SAMPLE: if (optval == NULL || (sample_interval = xatoi(optval)) <= 0) usage(); break; case OPT_REPORT: if (optval == NULL || (report_interval = xatoi(optval)) < 0) usage(); break; case OPT_CONFIG: if (optval == NULL || (config_interval = xatoi(optval)) < 0) usage(); break; default: usage(); } } modified++; break; case 'm': maxrss = optarg; break; case 'z': refresh = B_TRUE; zonename = optarg; break; default: usage(); } } /* the -z & -m options must be used together */ if (argc > optind || (refresh && maxrss == NULL) || (!refresh && maxrss != NULL)) usage(); if (refresh && (no_starting_stopping > 0 || modified)) usage(); if (rcfg_read(fname, -1, &conf, NULL) < 0) { if (!(errno == ENOENT && modified)) { die(gettext("resource caps not configured\n")); return (E_ERROR); } rcfg_init(&conf); conf.rcfg_mode_name = "project"; } else { /* * The configuration file has been read. Warn that any lnode * (or non-project) mode specification (by an SRM * 1.3 configuration file, for example) is ignored. */ if (strcmp(conf.rcfg_mode_name, "project") != 0) { warn(gettext("%s mode specification ignored -- using" " project mode\n"), conf.rcfg_mode_name); conf.rcfg_mode_name = "project"; conf.rcfg_mode = rctype_project; } } if (refresh) return (update_zone_mcap(zonename, maxrss)); if (modified) { if (pressure >= 0) conf.rcfg_memory_cap_enforcement_pressure = pressure; if (config_interval >= 0) conf.rcfg_reconfiguration_interval = config_interval; if (scan_interval >= 0) conf.rcfg_proc_walk_interval = scan_interval; if (report_interval >= 0) conf.rcfg_report_interval = report_interval; if (sample_interval >= 0) conf.rcfg_rss_sample_interval = sample_interval; /* * Create config file with the new parameter(s). The * create_config_file will exit if it fails. */ create_config_file(&conf); if (enable > 0 && smf_enable_instance(RCAP_FMRI, no_starting_stopping > 0 ? SMF_AT_NEXT_BOOT : 0) != 0) die(gettext("cannot enable service: %s\n"), scf_strerror(scf_error())); else if (disable > 0 && smf_disable_instance(RCAP_FMRI, no_starting_stopping > 0 ? SMF_AT_NEXT_BOOT : 0) != 0) die(gettext("cannot disable service: %s\n"), scf_strerror(scf_error())); return (E_SUCCESS); } /* * Display current configuration */ print_state(); (void) printf(gettext(" memory cap enforcement" " threshold: %d%%\n"), conf.rcfg_memory_cap_enforcement_pressure); (void) printf(gettext(" process scan rate" " (sec): %d\n"), conf.rcfg_proc_walk_interval); (void) printf(gettext(" reconfiguration rate" " (sec): %d\n"), conf.rcfg_reconfiguration_interval); (void) printf(gettext(" report rate" " (sec): %d\n"), conf.rcfg_report_interval); (void) printf(gettext(" RSS sampling rate" " (sec): %d\n"), conf.rcfg_rss_sample_interval); return (E_SUCCESS); }