/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 2008 Yahoo!, Inc.
 * All rights reserved.
 * Written by: John Baldwin <jhb@FreeBSD.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/param.h>
#include <sys/errno.h>
#include <err.h>
#include <libutil.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include "mptutil.h"

MPT_TABLE(top, volume);

const char *
mpt_volstate(U8 State)
{
        static char buf[16];

        switch (State) {
        case MPI_RAIDVOL0_STATUS_STATE_OPTIMAL:
                return ("OPTIMAL");
        case MPI_RAIDVOL0_STATUS_STATE_DEGRADED:
                return ("DEGRADED");
        case MPI_RAIDVOL0_STATUS_STATE_FAILED:
                return ("FAILED");
        case MPI_RAIDVOL0_STATUS_STATE_MISSING:
                return ("MISSING");
        default:
                sprintf(buf, "VSTATE 0x%02x", State);
                return (buf);
        }
}

static int
volume_name(int ac, char **av)
{
        CONFIG_PAGE_RAID_VOL_1 *vnames;
        U8 VolumeBus, VolumeID;
        int error, fd;

        if (ac != 3) {
                warnx("name: volume and name required");
                return (EINVAL);
        }

        if (strlen(av[2]) >= sizeof(vnames->Name)) {
                warnx("name: new name is too long");
                return (ENOSPC);
        }

        fd = mpt_open(mpt_unit);
        if (fd < 0) {
                error = errno;
                warn("mpt_open");
                return (error);
        }

        error = mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID);
        if (error) {
                warnc(error, "Invalid volume: %s", av[1]);
                return (error);
        }

        vnames = mpt_vol_names(fd, VolumeBus, VolumeID, NULL);
        if (vnames == NULL) {
                error = errno;
                warn("Failed to fetch volume names");
                close(fd);
                return (error);
        }

        if (vnames->Header.PageType != MPI_CONFIG_PAGEATTR_CHANGEABLE) {
                warnx("Volume name is read only");
                free(vnames);
                close(fd);
                return (EOPNOTSUPP);
        }
        printf("mpt%u changing volume %s name from \"%s\" to \"%s\"\n",
            mpt_unit, mpt_volume_name(VolumeBus, VolumeID), vnames->Name,
            av[2]);
        bzero(vnames->Name, sizeof(vnames->Name));
        strcpy(vnames->Name, av[2]);

        if (mpt_write_config_page(fd, vnames, NULL) < 0) {
                error = errno;
                warn("Failed to set volume name");
                free(vnames);
                close(fd);
                return (error);
        }

        free(vnames);
        close(fd);

        return (0);
}
MPT_COMMAND(top, name, volume_name);

static int
volume_status(int ac, char **av)
{
        MPI_RAID_VOL_INDICATOR prog;
        RAID_VOL0_STATUS VolumeStatus;
        uint64_t total, remaining;
        float pct;
        U8 VolumeBus, VolumeID;
        int error, fd;

        if (ac != 2) {
                warnx("volume status: %s", ac > 2 ? "extra arguments" :
                    "volume required");
                return (EINVAL);
        }

        fd = mpt_open(mpt_unit);
        if (fd < 0) {
                error = errno;
                warn("mpt_open");
                return (error);
        }

        error = mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID);
        if (error) {
                warnc(error, "Invalid volume: %s", av[1]);
                close(fd);
                return (error);
        }

        error = mpt_raid_action(fd, MPI_RAID_ACTION_INDICATOR_STRUCT, VolumeBus,
            VolumeID, 0, 0, NULL, 0, &VolumeStatus, (U32 *)&prog, sizeof(prog),
            NULL, NULL, 0);
        if (error) {
                warnc(error, "Fetching volume status failed");
                close(fd);
                return (error);
        }

        printf("Volume %s status:\n", mpt_volume_name(VolumeBus, VolumeID));
        printf("    state: %s\n", mpt_volstate(VolumeStatus.State));
        printf("    flags:");
        if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_ENABLED)
                printf(" ENABLED");
        else
                printf(" DISABLED");
        if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_QUIESCED)
                printf(", QUIESCED");
        if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)
                printf(", REBUILDING");
        if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_VOLUME_INACTIVE)
                printf(", INACTIVE");
        if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_BAD_BLOCK_TABLE_FULL)
                printf(", BAD BLOCK TABLE FULL");
        printf("\n");
        if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
                total = (uint64_t)prog.TotalBlocks.High << 32 |
                    prog.TotalBlocks.Low;
                remaining = (uint64_t)prog.BlocksRemaining.High << 32 |
                    prog.BlocksRemaining.Low;
                pct = (float)(total - remaining) * 100 / total;
                printf("   resync: %.2f%% complete\n", pct);
        }

        close(fd);
        return (0);
}
MPT_COMMAND(volume, status, volume_status);

static int
volume_cache(int ac, char **av)
{
        CONFIG_PAGE_RAID_VOL_0 *volume;
        U32 Settings, NewSettings;
        U8 VolumeBus, VolumeID;
        char *s1;
        int error, fd;

        if (ac != 3) {
                warnx("volume cache: %s", ac > 3 ? "extra arguments" :
                    "missing arguments");
                return (EINVAL);
        }

        for (s1 = av[2]; *s1 != '\0'; s1++)
                *s1 = tolower(*s1);
        if ((strcmp(av[2], "enable")) && (strcmp(av[2], "enabled")) &&
            (strcmp(av[2], "disable")) && (strcmp(av[2], "disabled"))) {
                warnx("volume cache: invalid flag; "
                    "must be 'enable', 'enabled', 'disable', or 'disabled'");
                return (EINVAL);
        }

        fd = mpt_open(mpt_unit);
        if (fd < 0) {
                error = errno;
                warn("mpt_open");
                return (error);
        }

        error = mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID);
        if (error) {
                warnc(error, "Invalid volume: %s", av[1]);
                close(fd);
                return (error);
        }

        volume = mpt_vol_info(fd, VolumeBus, VolumeID, NULL);
        if (volume == NULL) {
                close(fd);
                return (errno);
        }

        Settings = volume->VolumeSettings.Settings;

        NewSettings = Settings;
        if (strncmp(av[2], "enable", strlen("enable")) == 0)
                NewSettings |= 0x01;
        else if (strncmp(av[2], "disable", strlen("disable")) == 0)
                NewSettings &= ~0x01;

        if (NewSettings == Settings) {
                warnx("volume cache unchanged");
                free(volume);
                close(fd);
                return (0);
        }

        volume->VolumeSettings.Settings = NewSettings;
        error = mpt_raid_action(fd, MPI_RAID_ACTION_CHANGE_VOLUME_SETTINGS,
            VolumeBus, VolumeID, 0, *(U32 *)&volume->VolumeSettings, NULL, 0,
            NULL, NULL, 0, NULL, NULL, 0);
        if (error)
                warnc(error, "volume cache change failed");

        close(fd);
        return (error);
}
MPT_COMMAND(volume, cache, volume_cache);