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path: root/src/debug/jdwp/sets/list.c
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/* Chrysalide - Outil d'analyse de fichiers binaires
 * list.c - ensemble des jeux de commandes de JDWP
 *
 * Copyright (C) 2010-2017 Cyrille Bagard
 *
 *  This file is part of Chrysalide.
 *
 *  Chrysalide is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Chrysalide is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
 */


#include "list.h"


#include <stddef.h>


#include "thread.h"
#include "vm.h"


/* Consitue un contenu binaire à partir d'une charge utile. */
typedef bool (* set_jdwp_payload_fc) (const jdwp_payload *, const jdwp_cmd_vm_id_sizes_reply *, bin_t *, off_t *);

/* Reconstitue une charge utile à partir d'un contenu binaire. */
typedef bool (* get_jdwp_payload_fc) (const bin_t *, off_t, const jdwp_cmd_vm_id_sizes_reply *, jdwp_payload *);

/* Libère le contenu d'une charge utile. */
typedef void (* free_jdwp_payload_fc) (jdwp_payload *);


/* Commandes JDWP */
typedef struct _jdwp_command
{
    set_jdwp_payload_fc set_payload;        /* Constitution du binaire     */
    free_jdwp_payload_fc free_set_payload;  /* Libération de la mémoire    */
    get_jdwp_payload_fc get_payload;        /* Constitution de la charge   */
    free_jdwp_payload_fc free_got_payload;  /* Libération de la mémoire    */

} jdwp_command;


/* Energistrement des différents jeux */
static jdwp_command _commands[][256] = {

    [JDWP_CST_VIRTUAL_MACHINE] = {

        [JDWP_CMD_VM_VERSION] = {
            .set_payload = (set_jdwp_payload_fc)NULL,
            .free_set_payload = (free_jdwp_payload_fc)NULL,
            .get_payload = (get_jdwp_payload_fc)get_jdwp_vm_version,
            .free_got_payload = (free_jdwp_payload_fc)free_jdwp_vm_version
        },

        [JDWP_CMD_VM_ALL_THREADS] = {
            .set_payload = (set_jdwp_payload_fc)NULL,
            .free_set_payload = (free_jdwp_payload_fc)NULL,
            .get_payload = (get_jdwp_payload_fc)get_jdwp_vm_all_threads,
            .free_got_payload = (free_jdwp_payload_fc)free_jdwp_all_threads
        },

        [JDWP_CMD_VM_ID_SIZES] = {
            .set_payload = (set_jdwp_payload_fc)NULL,
            .free_set_payload = (free_jdwp_payload_fc)NULL,
            .get_payload = (get_jdwp_payload_fc)get_jdwp_vm_id_sizes,
            .free_got_payload = (free_jdwp_payload_fc)NULL
        }

    },

    [JDWP_CST_THREAD_REFERENCE] = {

        [JDWP_CMD_THREAD_NAME] = {
            .set_payload = (set_jdwp_payload_fc)set_jdwp_thread_name,
            .free_set_payload = (free_jdwp_payload_fc)NULL,
            .get_payload = (get_jdwp_payload_fc)get_jdwp_thread_name,
            .free_got_payload = (free_jdwp_payload_fc)free_jdwp_thread_name_reply
        },

        [JDWP_CMD_THREAD_FRAMES] = {
            .set_payload = (set_jdwp_payload_fc)set_jdwp_thread_frames,
            .free_set_payload = (free_jdwp_payload_fc)NULL,
            .get_payload = (get_jdwp_payload_fc)get_jdwp_thread_frames,
            .free_got_payload = (free_jdwp_payload_fc)free_jdwp_thread_frames_reply
        }

    }

};



/******************************************************************************
*                                                                             *
*  Paramètres  : payload = charge utile à transcrire.                         *
*                set     = jeu de commandes concerné.                         *
*                cmd     = identifiant d'une commande donnée.                 *
*                sizes   = références pour la valeur des tailles dynamiques.  *
*                blob    = futures données binaires brutes. [OUT]             *
*                len     = quantité de données valides. [OUT]                 *
*                                                                             *
*  Description : Reconstitue un contenu binaire à partir d'une charge utile.  *
*                                                                             *
*  Retour      : Bilan de l'opération.                                        *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

bool set_jdwp_payload(const jdwp_payload *payload, uint8_t set, uint8_t cmd, const jdwp_cmd_vm_id_sizes_reply *sizes, bin_t *blob, off_t *len)
{
    bool result;                            /* Bilan à retourner           */

    if (_commands[set][cmd].set_payload == NULL) result = false;
    else result = _commands[set][cmd].set_payload(payload, sizes, blob, len);

    return result;

}


/******************************************************************************
*                                                                             *
*  Paramètres  : blob    = ensemble de données binaires brutes.               *
*                len     = quantité de données valides.                       *
*                set     = jeu de commandes concerné.                         *
*                cmd     = identifiant d'une commande donnée.                 *
*                sizes   = références pour la valeur des tailles dynamiques.  *
*                payload = charge utile à reconstituer. [OUT]                 *
*                                                                             *
*  Description : Reconstitue une charge utile à partir d'un contenu binaire.  *
*                                                                             *
*  Retour      : Bilan de l'opération.                                        *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

bool get_jdwp_payload(const bin_t *blob, off_t len, uint8_t set, uint8_t cmd, const jdwp_cmd_vm_id_sizes_reply *sizes, jdwp_payload *payload)
{
    bool result;                            /* Bilan à retourner           */

    if (_commands[set][cmd].get_payload == NULL) result = false;
    else result = _commands[set][cmd].get_payload(blob, len, sizes, payload);

    return result;

}


/******************************************************************************
*                                                                             *
*  Paramètres  : payload = charge utile à supprimer de la mémoire.            *
*                got     = type de charge utile à traiter.                    *
*                set     = jeu de commandes concerné.                         *
*                cmd     = identifiant d'une commande donnée.                 *
*                                                                             *
*  Description : Libère le contenu d'une charge utile.                        *
*                                                                             *
*  Retour      : -                                                            *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

void free_jdwp_payload(jdwp_payload *payload, bool got, uint8_t set, uint8_t cmd)
{
    if (got)
    {
        if (_commands[set][cmd].free_got_payload != NULL)
            _commands[set][cmd].free_got_payload(payload);
    }
    else
    {
        if (_commands[set][cmd].free_set_payload != NULL)
            _commands[set][cmd].free_set_payload(payload);
    }

}