/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 2008, 2009 Yahoo!, Inc.
 * All rights reserved.
 *
 * 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. The names of the authors may not 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/types.h>
#include <sys/errno.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "mfiutil.h"

static char *
adapter_time(time_t now, uint32_t at_now, uint32_t at)
{
        time_t t;

        t = (now - at_now) + at;
        return (ctime(&t));
}

static void
mfi_get_time(int fd, uint32_t *at)
{

        if (mfi_dcmd_command(fd, MFI_DCMD_TIME_SECS_GET, at, sizeof(*at), NULL,
            0, NULL) < 0) {
                warn("Couldn't fetch adapter time");
                at = 0;
        }
}

static int
patrol_get_props(int fd, struct mfi_pr_properties *prop)
{
        int error;

        if (mfi_dcmd_command(fd, MFI_DCMD_PR_GET_PROPERTIES, prop,
            sizeof(*prop), NULL, 0, NULL) < 0) {
                error = errno;
                warn("Failed to get patrol read properties");
                return (error);
        }
        return (0);
}

static int
show_patrol(int ac __unused, char **av __unused)
{
        struct mfi_pr_properties prop;
        struct mfi_pr_status status;
        struct mfi_pd_list *list;
        struct mfi_pd_info info;
        char label[24];
        time_t now;
        uint32_t at;
        int error, fd;
        u_int i;

        fd = mfi_open(mfi_device, O_RDWR);
        if (fd < 0) {
                error = errno;
                warn("mfi_open");
                return (error);
        }

        time(&now);
        mfi_get_time(fd, &at);
        error = patrol_get_props(fd, &prop);
        if (error) {
                close(fd);
                return (error);
        }
        printf("Operation Mode: ");
        switch (prop.op_mode) {
        case MFI_PR_OPMODE_AUTO:
                printf("auto\n");
                break;
        case MFI_PR_OPMODE_MANUAL:
                printf("manual\n");
                break;
        case MFI_PR_OPMODE_DISABLED:
                printf("disabled\n");
                break;
        default:
                printf("??? (%02x)\n", prop.op_mode);
                break;
        }
        if (prop.op_mode == MFI_PR_OPMODE_AUTO) {
                if (at != 0 && prop.next_exec)
                        printf("    Next Run Starts: %s", adapter_time(now, at,
                            prop.next_exec));
                if (prop.exec_freq == 0xffffffff)
                        printf("    Runs Execute Continuously\n");
                else if (prop.exec_freq != 0)
                        printf("    Runs Start Every %u seconds\n",
                            prop.exec_freq);
        }

        if (mfi_dcmd_command(fd, MFI_DCMD_PR_GET_STATUS, &status,
            sizeof(status), NULL, 0, NULL) < 0) {
                error = errno;
                warn("Failed to get patrol read properties");
                close(fd);
                return (error);
        }
        printf("Runs Completed: %u\n", status.num_iteration);
        printf("Current State: ");
        switch (status.state) {
        case MFI_PR_STATE_STOPPED:
                printf("stopped\n");
                break;
        case MFI_PR_STATE_READY:
                printf("ready\n");
                break;
        case MFI_PR_STATE_ACTIVE:
                printf("active\n");
                break;
        case MFI_PR_STATE_ABORTED:
                printf("aborted\n");
                break;
        default:
                printf("??? (%02x)\n", status.state);
                break;
        }
        if (status.state == MFI_PR_STATE_ACTIVE) {
                if (mfi_pd_get_list(fd, &list, NULL) < 0) {
                        error = errno;
                        warn("Failed to get drive list");
                        close(fd);
                        return (error);
                }

                for (i = 0; i < list->count; i++) {
                        if (list->addr[i].scsi_dev_type != 0)
                                continue;

                        if (mfi_pd_get_info(fd, list->addr[i].device_id, &info,
                            NULL) < 0) {
                                error = errno;
                                warn("Failed to fetch info for drive %u",
                                    list->addr[i].device_id);
                                free(list);
                                close(fd);
                                return (error);
                        }
                        if (info.prog_info.active & MFI_PD_PROGRESS_PATROL) {
                                snprintf(label, sizeof(label), "    Drive %s",
                                    mfi_drive_name(NULL,
                                    list->addr[i].device_id,
                                    MFI_DNAME_DEVICE_ID|MFI_DNAME_HONOR_OPTS));
                                mfi_display_progress(label,
                                    &info.prog_info.patrol);
                        }
                }
                free(list);
        }

        close(fd);

        return (0);
}
MFI_COMMAND(show, patrol, show_patrol);

static int
start_patrol(int ac __unused, char **av __unused)
{
        int error, fd;

        fd = mfi_open(mfi_device, O_RDWR);
        if (fd < 0) {
                error = errno;
                warn("mfi_open");
                return (error);
        }

        if (mfi_dcmd_command(fd, MFI_DCMD_PR_START, NULL, 0, NULL, 0, NULL) <
            0) {
                error = errno;
                warn("Failed to start patrol read");
                close(fd);
                return (error);
        }

        close(fd);

        return (0);
}
MFI_COMMAND(start, patrol, start_patrol);

static int
stop_patrol(int ac __unused, char **av __unused)
{
        int error, fd;

        fd = mfi_open(mfi_device, O_RDWR);
        if (fd < 0) {
                error = errno;
                warn("mfi_open");
                return (error);
        }

        if (mfi_dcmd_command(fd, MFI_DCMD_PR_STOP, NULL, 0, NULL, 0, NULL) <
            0) {
                error = errno;
                warn("Failed to stop patrol read");
                close(fd);
                return (error);
        }

        close(fd);

        return (0);
}
MFI_COMMAND(stop, patrol, stop_patrol);

static int
patrol_config(int ac, char **av)
{
        struct mfi_pr_properties prop;
        long val;
        time_t now;
        int error, fd;
        uint32_t at, next_exec, exec_freq;
        char *cp;
        uint8_t op_mode;

        exec_freq = 0;  /* GCC too stupid */
        next_exec = 0;
        if (ac < 2) {
                warnx("patrol: command required");
                return (EINVAL);
        }
        if (strcasecmp(av[1], "auto") == 0) {
                op_mode = MFI_PR_OPMODE_AUTO;
                if (ac > 2) {
                        if (strcasecmp(av[2], "continuously") == 0)
                                exec_freq = 0xffffffff;
                        else {
                                val = strtol(av[2], &cp, 0);
                                if (*cp != '\0') {
                                        warnx("patrol: Invalid interval %s",
                                            av[2]);
                                        return (EINVAL);
                                }
                                exec_freq = val;
                        }
                }
                if (ac > 3) {
                        val = strtol(av[3], &cp, 0);
                        if (*cp != '\0' || val < 0) {
                                warnx("patrol: Invalid start time %s", av[3]);
                                return (EINVAL);
                        }
                        next_exec = val;
                }
        } else if (strcasecmp(av[1], "manual") == 0)
                op_mode = MFI_PR_OPMODE_MANUAL;
        else if (strcasecmp(av[1], "disable") == 0)
                op_mode = MFI_PR_OPMODE_DISABLED;
        else {
                warnx("patrol: Invalid command %s", av[1]);
                return (EINVAL);
        }

        fd = mfi_open(mfi_device, O_RDWR);
        if (fd < 0) {
                error = errno;
                warn("mfi_open");
                return (error);
        }

        error = patrol_get_props(fd, &prop);
        if (error) {
                close(fd);
                return (error);
        }
        prop.op_mode = op_mode;
        if (op_mode == MFI_PR_OPMODE_AUTO) {
                if (ac > 2)
                        prop.exec_freq = exec_freq;
                if (ac > 3) {
                        time(&now);
                        mfi_get_time(fd, &at);
                        if (at == 0) {
                                close(fd);
                                return (ENXIO);
                        }
                        prop.next_exec = at + next_exec;
                        printf("Starting next patrol read at %s",
                            adapter_time(now, at, prop.next_exec));
                }
        }
        if (mfi_dcmd_command(fd, MFI_DCMD_PR_SET_PROPERTIES, &prop,
            sizeof(prop), NULL, 0, NULL) < 0) {
                error = errno;
                warn("Failed to set patrol read properties");
                close(fd);
                return (error);
        }

        close(fd);

        return (0);
}
MFI_COMMAND(top, patrol, patrol_config);