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net: lwm2m: Sets ct to registration msg

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Tells the server which content format is preferred in a registration
message.

Signed-off-by: Veijo Pesonen <veijo.pesonen@nordicsemi.no>
This commit is contained in:
Veijo Pesonen 2022-04-13 16:37:05 +03:00 committed by Carles Cufí
parent 4f76b194a4
commit b78dd2498a
1 changed files with 8 additions and 5 deletions
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13
subsys/net/lib/lwm2m/lwm2m_rw_link_format.c
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@ -28,10 +28,13 @@ LOG_MODULE_REGISTER(net_lwm2m_link_format, CONFIG_LWM2M_LOG_LEVEL);
* missing.
*/
#if defined(CONFIG_LWM2M_RW_JSON_SUPPORT)
#define RESOURCE_TYPE ";rt=\"oma.lwm2m\""
#define REG_PREFACE "</>" RESOURCE_TYPE \
#if defined(CONFIG_LWM2M_RW_SENML_CBOR_SUPPORT)
#define REG_PREFACE "</>;ct=" STRINGIFY(LWM2M_FORMAT_APP_SENML_CBOR)
#elif defined(CONFIG_LWM2M_RW_SENML_JSON_SUPPORT)
#define REG_PREFACE "</>;ct=" STRINGIFY(LWM2M_FORMAT_APP_SEML_JSON)
#elif defined(CONFIG_LWM2M_RW_JSON_SUPPORT)
#define REG_PREFACE "</>;rt=\"oma.lwm2m\"" \
";ct=" STRINGIFY(LWM2M_FORMAT_OMA_JSON)
#else
#define REG_PREFACE ""
@ -61,8 +64,8 @@ static int put_begin(struct lwm2m_output_context *out,
break;
case LINK_FORMAT_MODE_REGISTER:
/* Only indicate content type if json is enabled. */
if (!IS_ENABLED(CONFIG_LWM2M_RW_JSON_SUPPORT)) {
/* No need to append content type */
if (strlen(REG_PREFACE) == 0) {
return 0;
}