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mqtt: support binary Will Message

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see patch #10049
This commit is contained in:
Simon Goldschmidt 2023-09-29 22:08:03 +02:00
parent 2d6883c432
commit 14444c1c7f
4 changed files with 14 additions and 4 deletions
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1
contrib/examples/mqtt/mqtt_example.c
View File

@ -54,6 +54,7 @@ static const struct mqtt_connect_client_info_t mqtt_client_info =
100, /* keep alive */
NULL, /* will_topic */
NULL, /* will_msg */
0, /* will_msg_len */
0, /* will_qos */
0 /* will_retain */
#if LWIP_ALTCP && LWIP_ALTCP_TLS

13
src/apps/mqtt/mqtt.c
View File

@ -1337,9 +1337,16 @@ mqtt_client_connect(mqtt_client_t *client, const ip_addr_t *ip_addr, u16_t port,
LWIP_ERROR("mqtt_client_connect: client_info->will_topic length overflow", len <= 0xFF, return ERR_VAL);
LWIP_ERROR("mqtt_client_connect: client_info->will_topic length must be > 0", len > 0, return ERR_VAL);
will_topic_len = (u8_t)len;
len = strlen(client_info->will_msg);
LWIP_ERROR("mqtt_client_connect: client_info->will_msg length overflow", len <= 0xFF, return ERR_VAL);
will_msg_len = (u8_t)len;
if (client_info->will_msg_len == 0)
{
len = strlen(client_info->will_msg);
LWIP_ERROR("mqtt_client_connect: client_info->will_msg length overflow", len <= 0xFF, return ERR_VAL);
will_msg_len = (u8_t)len;
}
else
{
will_msg_len = client_info->will_msg_len;
}
len = remaining_length + 2 + will_topic_len + 2 + will_msg_len;
LWIP_ERROR("mqtt_client_connect: remaining_length overflow", len <= 0xFFFF, return ERR_VAL);
remaining_length = (u16_t)len;

2
src/include/lwip/apps/mqtt.h
View File

@ -79,6 +79,8 @@ struct mqtt_connect_client_info_t {
const char* will_topic;
/** will_msg, see will_topic */
const char* will_msg;
/** will_msg length, 0 to compute length from will_msg string */
u8_t will_msg_len;
/** will_qos, see will_topic */
u8_t will_qos;
/** will_retain, see will_topic */

2
test/unit/mqtt/test_mqtt.c
View File

@ -77,7 +77,7 @@ START_TEST(basic_connect)
"dumm",
NULL, NULL,
10,
NULL, NULL, 0, 0
NULL, NULL, 0, 0, 0
};
struct pbuf *p;
unsigned char rxbuf[] = {0x20, 0x02, 0x00, 0x00};