mirror of
https://github.com/espressif/esp-protocols.git
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92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
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* SPDX-FileCopyrightText: 2024 Roger Light <roger@atchoo.org>
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*
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* SPDX-License-Identifier: EPL-2.0
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*
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* SPDX-FileContributor: 2024-2025 Espressif Systems (Shanghai) CO LTD
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*/
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#include <string.h>
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#include "mosquitto_internal.h"
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#include "mosquitto_broker.h"
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#include "memory_mosq.h"
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#include "mqtt_protocol.h"
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#include "send_mosq.h"
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#include "util_mosq.h"
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#include "utlist.h"
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#include "lib_load.h"
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#include "mosq_broker.h"
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mosq_message_cb_t g_mosq_message_callback = NULL;
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mosq_connect_cb_t g_mosq_connect_callback = NULL;
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int mosquitto_callback_register(
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mosquitto_plugin_id_t *identifier,
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int event,
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MOSQ_FUNC_generic_callback cb_func,
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const void *event_data,
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void *userdata)
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{
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return MOSQ_ERR_INVAL;
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}
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int mosquitto_callback_unregister(
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mosquitto_plugin_id_t *identifier,
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int event,
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MOSQ_FUNC_generic_callback cb_func,
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const void *event_data)
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{
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return MOSQ_ERR_INVAL;
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}
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void plugin__handle_tick(void)
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{
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}
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void plugin__handle_disconnect(struct mosquitto *context, int reason)
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{
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}
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int plugin__handle_message(struct mosquitto *context, struct mosquitto_msg_store *stored)
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{
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if (g_mosq_message_callback) {
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g_mosq_message_callback(context->id, stored->topic, stored->payload, stored->payloadlen, stored->qos, stored->retain);
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}
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return MOSQ_ERR_SUCCESS;
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}
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int __real_mosquitto_unpwd_check(struct mosquitto *context);
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/* Wrapper function to intercept mosquitto_unpwd_check calls via linker wrapping */
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int __wrap_mosquitto_unpwd_check(struct mosquitto *context)
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{
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int rc;
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int password_len = 0;
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/* Call user's connect callback if set */
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if (g_mosq_connect_callback) {
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/* Extract password length if password is present.
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* Note: MQTT passwords are binary data, but mosquitto stores them as null-terminated strings.
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* If password contains null bytes, strlen() will not return the full length.
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* This matches how mosquitto itself handles passwords in some security functions. */
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if (context->password) {
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password_len = (int)strlen(context->password);
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}
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/* Call user callback */
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rc = g_mosq_connect_callback(
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context->id ? context->id : "",
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context->username ? context->username : NULL,
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context->password ? context->password : NULL,
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password_len
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);
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/* If callback rejects (returns non-zero), return AUTH error immediately */
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if (rc != 0) {
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return MOSQ_ERR_AUTH;
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}
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}
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/* Call the original function */
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return __real_mosquitto_unpwd_check(context);
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}
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