使用esp_mqtt_client_config_t的use_global_ca_store成员,编译出错

kelly1947
Posts: 7
Joined: Mon Sep 16, 2019 6:49 am

使用esp_mqtt_client_config_t的use_global_ca_store成员,编译出错

Postby kelly1947 » Fri Oct 25, 2019 2:05 am

IDF是v3.3,只要代码中调用了 .use_global_ca_store 这个变量就会提示找不到
app_main.c:133:10: error: 'esp_mqtt_client_config_t {aka struct <anonymous>}' has no member named 'use_global_ca_store'
但是我在头文件里是明确看到这一成员变量的,然后我在英文板块也看到有人反馈这个问题,麻烦官方看一下是哪里出错了

kelly1947
Posts: 7
Joined: Mon Sep 16, 2019 6:49 am

Re: 使用esp_mqtt_client_config_t的use_global_ca_store成员,编译出错

Postby kelly1947 » Fri Oct 25, 2019 2:31 am

我重新拉取了最新的MQTT组件,目前可以编译了,但是跑WSS的demo会不断重启,提示如下:

Code: Select all

I (4677) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (4687) MQTTWSS_EXAMPLE: Other event id:7
Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.
Core 1 register dump:
PC      : 0x4012ff1b  PS      : 0x00060630  A0      : 0x800e7694  A1      : 0x3ffc88a0  
0x4012ff1b: ip4addr_aton at /mnt/hgfs/workspace/esp32/IDF/esp-idf-v3.3/components/lwip/lwip/src/core/ipv4/ip4_addr.c:173

A2      : 0x00000000  A3      : 0x3ffc88d4  A4      : 0x00060020  A5      : 0x00000001  
A6      : 0x00060020  A7      : 0x00000000  A8      : 0x800d31a2  A9      : 0x3ffc8880  
A10     : 0x400deac8  A11     : 0x3ffb3cd4  A12     : 0x3f40369c  A13     : 0x0000001f  
0x400deac8: vprintf at /Users/ivan/e/newlib_xtensa-2.2.0-bin/newlib_xtensa-2.2.0/xtensa-esp32-elf/newlib/libc/stdio/../../../.././newlib/libc/stdio/vprintf.c:35

A14     : 0x00000001  A15     : 0x00000003  SAR     : 0x00000004  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000000  LBEG    : 0x400014fd  LEND    : 0x4000150d  LCOUNT  : 0xfffffffb  

ELF file SHA256: 3816237763bd30f6d735072ab74d2905bb97580e92da8c213967c6a1497a619f

Backtrace: 0x4012ff1b:0x3ffc88a0 0x400e7691:0x3ffc88d0 0x40154679:0x3ffc8910 0x400d38c7:0x3ffc8930 0x4008bf05:0x3ffc8950
0x4012ff1b: ip4addr_aton at /mnt/hgfs/workspace/esp32/IDF/esp-idf-v3.3/components/lwip/lwip/src/core/ipv4/ip4_addr.c:173

0x400e7691: tcp_connect at /mnt/hgfs/workspace/esp32/IDF/esp-idf-v3.3/components/tcp_transport/transport_tcp.c:61

0x40154679: esp_transport_connect at /mnt/hgfs/workspace/esp32/IDF/esp-idf-v3.3/components/tcp_transport/transport.c:163

0x400d38c7: esp_mqtt_task at /mnt/hgfs/workspace/esp32/IDF/esp-idf-v3.3/components/mqtt/esp-mqtt/mqtt_client.c:780
请问一下这个use_global_ca_store到底怎么用的?连接WSS的mqtt是必须添加证书吗?

ESP_Gargamel
Posts: 41
Joined: Wed Nov 14, 2018 8:45 am

Re: 使用esp_mqtt_client_config_t的use_global_ca_store成员,编译出错

Postby ESP_Gargamel » Fri Nov 08, 2019 2:20 am

你先用默认的 wss example 试试,把 broker 改成 wss://test.mosquitto.org:8081/wss,不用改动代码。

有以下几种方式:
1. wss example 中默认是需要校验 CA 证书的,
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = CONFIG_BROKER_URI,
.event_handle = mqtt_event_handler,
.cert_pem = (const char *)iot_eclipse_org_pem_start,
};
2. 可以不校验:
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = CONFIG_BROKER_URI,
.event_handle = mqtt_event_handler,
};
3. 可以用一个全局的 CA 校验:
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = CONFIG_BROKER_URI,
.event_handle = mqtt_event_handler,
.use_global_ca_store = true,
};
这种方式下,需要调用 esp_tls_set_global_ca_store 接口注册全局 CA,这个示例中可以是如下:
esp_tls_set_global_ca_store(iot_eclipse_org_pem_start, iot_eclipse_org_pem_end - iot_eclipse_org_pem_start);
注:在 esp_mqtt_client_init 之前调用,需要 #include "esp_tls.h"。

另外,不知道你是怎么改导致出这个 crash 的,提问时请尽量多的提供信息,以便分析。

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