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/*
   Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com>
   This file is part of GlusterFS.

   This file is licensed to you under your choice of the GNU Lesser
   General Public License, version 3 or any later version (LGPLv3 or
   later), or the GNU General Public License, version 2 (GPLv2), in all
   cases as published by the Free Software Foundation.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <pthread.h>

#include <sys/socket.h>
#include <netdb.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <netinet/in.h>

#include "cli.h"
#include "cli-cmd.h"
#include "cli-mem-types.h"
#include "cli1-xdr.h"
#include <glusterfs/run.h>
#include <glusterfs/syscall.h>
#include <glusterfs/common-utils.h>

int
cli_cmd_global_help_cbk(struct cli_state *state, struct cli_cmd_word *in_word,
                        const char **words, int wordcount);
int
cli_cmd_get_state_cbk(struct cli_state *state, struct cli_cmd_word *word,
                      const char **words, int wordcount);

int
cli_cmd_ganesha_cbk(struct cli_state *state, struct cli_cmd_word *word,
                    const char **words, int wordcount);

struct cli_cmd global_cmds[] = {
    {
        "global help",
        cli_cmd_global_help_cbk,
        "list global commands",
    },
    {
        "get-state [<daemon>] [[odir </path/to/output/dir/>] "
        "[file <filename>]] [detail|volumeoptions]",
        cli_cmd_get_state_cbk,
        "Get local state representation of mentioned daemon",
    },
    {
        "nfs-ganesha {enable| disable} ",
        cli_cmd_ganesha_cbk,
        "Enable/disable NFS-Ganesha support",
    },
    {NULL, NULL, NULL}};

int
cli_cmd_global_help_cbk(struct cli_state *state, struct cli_cmd_word *in_word,
                        const char **words, int wordcount)
{
    struct cli_cmd *cmd = NULL;
    struct cli_cmd *global_cmd = NULL;
    int count = 0;

    cmd = GF_MALLOC(sizeof(global_cmds), cli_mt_cli_cmd);
    memcpy(cmd, global_cmds, sizeof(global_cmds));
    count = (sizeof(global_cmds) / sizeof(struct cli_cmd));
    cli_cmd_sort(cmd, count);

    cli_out("\ngluster global commands");
    cli_out("========================\n");
    for (global_cmd = cmd; global_cmd->pattern; global_cmd++)
        if (_gf_false == global_cmd->disable)
            cli_out("%s - %s", global_cmd->pattern, global_cmd->desc);

    cli_out("\n");
    GF_FREE(cmd);
    return 0;
}

int
cli_cmd_global_register(struct cli_state *state)
{
    int ret = 0;
    struct cli_cmd *cmd = NULL;
    for (cmd = global_cmds; cmd->pattern; cmd++) {
        ret = cli_cmd_register(&state->tree, cmd);
        if (ret)
            goto out;
    }
out:
    return ret;
}

int
cli_cmd_ganesha_cbk(struct cli_state *state, struct cli_cmd_word *word,
                    const char **words, int wordcount)

{
    int sent = 0;
    int parse_error = 0;
    int ret = -1;
    rpc_clnt_procedure_t *proc = NULL;
    call_frame_t *frame = NULL;
    dict_t *options = NULL;
    cli_local_t *local = NULL;
    char *op_errstr = NULL;

    proc = &cli_rpc_prog->proctable[GLUSTER_CLI_GANESHA];

    frame = create_frame(THIS, THIS->ctx->pool);
    if (!frame)
        goto out;

    ret = cli_cmd_ganesha_parse(state, words, wordcount, &options, &op_errstr);
    if (ret) {
        if (op_errstr) {
            cli_err("%s", op_errstr);
            GF_FREE(op_errstr);
        } else
            cli_usage_out(word->pattern);
        parse_error = 1;
        goto out;
    }

    CLI_LOCAL_INIT(local, words, frame, options);

    if (proc->fn) {
        ret = proc->fn(frame, THIS, options);
    }

out:
    if (ret) {
        cli_cmd_sent_status_get(&sent);
        if ((sent == 0) && (parse_error == 0))
            cli_out("Setting global option failed");
    }

    CLI_STACK_DESTROY(frame);
    return ret;
}

int
cli_cmd_get_state_cbk(struct cli_state *state, struct cli_cmd_word *word,
                      const char **words, int wordcount)
{
    int sent = 0;
    int parse_error = 0;
    int ret = -1;
    rpc_clnt_procedure_t *proc = NULL;
    call_frame_t *frame = NULL;
    dict_t *options = NULL;
    cli_local_t *local = NULL;
    char *op_errstr = NULL;

    ret = cli_cmd_get_state_parse(state, words, wordcount, &options,
                                  &op_errstr);

    if (ret) {
        if (op_errstr) {
            cli_err("%s", op_errstr);
            cli_usage_out(word->pattern);
            GF_FREE(op_errstr);
        } else
            cli_usage_out(word->pattern);

        parse_error = 1;
        goto out;
    }

    frame = create_frame(THIS, THIS->ctx->pool);
    if (!frame) {
        ret = -1;
        goto out;
    }

    CLI_LOCAL_INIT(local, words, frame, options);

    proc = &cli_rpc_prog->proctable[GLUSTER_CLI_GET_STATE];
    if (proc->fn)
        ret = proc->fn(frame, THIS, options);
out:
    if (ret) {
        cli_cmd_sent_status_get(&sent);
        if ((sent == 0) && (parse_error == 0))
            cli_out("Getting daemon state failed");
    }

    CLI_STACK_DESTROY(frame);

    return ret;
}