cmd/stmfsvc/stmfsvc.c

	stmfsvc.c revision fcf3ce441efd61da9bb2884968af01cb7c1452cc
/*
 * 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 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <stdlib.h>
#include <stdio.h>
#include <strings.h>
#include <sys/types.h>
#include <unistd.h>
#include <libintl.h>
#include <errno.h>
#include <time.h>
#include <string.h>
#include <assert.h>
#include <getopt.h>
#include <cmdparse.h>
#include <libstmf.h>
#include <signal.h>
#include <pthread.h>
#include <locale.h>

static int svcStart(int, char **, cmdOptions_t *, void *);
static int svcStop(int, char **, cmdOptions_t *, void *);
static int online();

/*
 *  MAJOR - This should only change when there is an incompatible change made
 *  to the interfaces or the output.
 *
 *  MINOR - This should change whenever there is a new command or new feature
 *  with no incompatible change.
 */
#define VERSION_STRING_MAJOR        "1"
#define VERSION_STRING_MINOR        "0"
#define VERSION_STRING_MAX_LEN      10

/* 10 ms sleep in nanoseconds */
#define TEN_MS_NANOSLEEP  10000000

/* tables set up based on cmdparse instructions */

/* add new options here */
optionTbl_t longOptions[] = {
    {NULL, 0, 0, 0}
};

/*
 * Add new subcommands here
 */
subCommandProps_t subcommands[] = {
    {"start", svcStart, NULL, NULL, NULL, OPERAND_NONE, NULL},
    {"stop", svcStop, NULL, NULL, NULL, OPERAND_NONE, NULL},
    {NULL, 0, NULL, NULL, 0, NULL, 0, NULL}
};

/* globals */
char *cmdName;

/*
 * svcStop
 *
 * Offlines the stmf service
 *
 */
/*ARGSUSED*/
static int
svcStop(int operandLen, char *operands[], cmdOptions_t *options,
    void *args)
{
    int stmfRet;
    int ret = 0;
    stmfState state;
    boolean_t serviceOffline = B_FALSE;
    struct timespec rqtp;

    bzero(&rqtp, sizeof (rqtp));

    rqtp.tv_nsec = TEN_MS_NANOSLEEP;

    if ((stmfRet = stmfOffline()) != STMF_STATUS_SUCCESS) {
        switch (stmfRet) {
            case STMF_ERROR_PERM:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("permission denied"));
                break;
            case STMF_ERROR_SERVICE_NOT_FOUND:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("STMF service not found"));
                break;
            case STMF_ERROR_SERVICE_OFFLINE:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("STMF service already offline"));
                break;
            default:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("unable to offline service"));
                break;
        }
        return (1);
    }

    /* wait for service offline */
    while (!serviceOffline) {
        stmfRet = stmfGetState(&state);
        if (stmfRet != STMF_STATUS_SUCCESS) {
            ret = 1;
            break;
        }
        if (state.operationalState == STMF_SERVICE_STATE_OFFLINE) {
            serviceOffline = B_TRUE;
        } else {
            (void) nanosleep(&rqtp, NULL);
        }
    }

    return (ret);
}

/*
 * loadConfig
 *
 * Loads the stmf config from the SMF repository
 *
 */
/*ARGSUSED*/
static int
svcStart(int operandLen, char *operands[], cmdOptions_t *options,
    void *args)
{
    int stmfRet;
    int ret = 0;
    if ((stmfRet = stmfLoadConfig()) != STMF_STATUS_SUCCESS) {
        switch (stmfRet) {
            case STMF_ERROR_PERM:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("permission denied"));
                break;
            case STMF_ERROR_SERVICE_NOT_FOUND:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("STMF service not found"));
                break;
            case STMF_ERROR_SERVICE_ONLINE:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("STMF service must be offline"));
                break;
            default:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("unable to load config"));
                break;
        }
        return (1);
    }
    ret = online();
    return (ret);

}

/*
 * online
 *
 * Onlines the stmf service
 *
 */
/*ARGSUSED*/
static int
online()
{
    int stmfRet;
    int ret = 0;
    stmfState state;
    boolean_t serviceOnline = B_FALSE;
    struct timespec rqtp;

    bzero(&rqtp, sizeof (rqtp));

    rqtp.tv_nsec = TEN_MS_NANOSLEEP;

    if ((stmfRet = stmfOnline()) != STMF_STATUS_SUCCESS) {
        switch (stmfRet) {
            case STMF_ERROR_PERM:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("permission denied"));
                break;
            case STMF_ERROR_SERVICE_NOT_FOUND:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("STMF service not found"));
                break;
            case STMF_ERROR_SERVICE_ONLINE:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("STMF service already online"));
                break;
            default:
                (void) fprintf(stderr, "%s: %s\n", cmdName,
                    gettext("unable to online service"));
                break;
        }
        return (1);
    }

    /* wait for service online */
    while (!serviceOnline) {
        stmfRet = stmfGetState(&state);
        if (stmfRet != STMF_STATUS_SUCCESS) {
            ret = 1;
            break;
        }
        if (state.operationalState == STMF_SERVICE_STATE_ONLINE) {
            serviceOnline = B_TRUE;
        } else {
            (void) nanosleep(&rqtp, NULL);
        }
    }

    return (ret);
}


/*
 * input:
 *  execFullName - exec name of program (argv[0])
 *
 *  copied from usr/src/cmd/zoneadm/zoneadm.c in OS/Net
 *  (changed name to lowerCamelCase to keep consistent with this file)
 *
 * Returns:
 *  command name portion of execFullName
 */
static char *
getExecBasename(char *execFullname)
{
    char *lastSlash, *execBasename;

    /* guard against '/' at end of command invocation */
    for (;;) {
        lastSlash = strrchr(execFullname, '/');
        if (lastSlash == NULL) {
            execBasename = execFullname;
            break;
        } else {
            execBasename = lastSlash + 1;
            if (*execBasename == '\0') {
                *lastSlash = '\0';
                continue;
            }
            break;
        }
    }
    return (execBasename);
}

int
main(int argc, char *argv[])
{
    synTables_t synTables;
    char versionString[VERSION_STRING_MAX_LEN];
    int ret;
    int funcRet;
    void *subcommandArgs = NULL;

    (void) setlocale(LC_ALL, "");
    /* set global command name */
    cmdName = getExecBasename(argv[0]);

    (void) snprintf(versionString, VERSION_STRING_MAX_LEN, "%s.%s",
        VERSION_STRING_MAJOR, VERSION_STRING_MINOR);
    synTables.versionString = versionString;
    synTables.longOptionTbl = &longOptions[0];
    synTables.subCommandPropsTbl = &subcommands[0];

    ret = cmdParse(argc, argv, synTables, subcommandArgs, &funcRet);
    if (ret != 0) {
        return (ret);
    }

    return (funcRet);
} /* end main */