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net: mqtt: Add TLS socket transport

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Add TLS transport to socket MQTT implementation.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This commit is contained in:
Robert Lubos 2018-09-06 10:28:55 +02:00 • committed by Anas Nashif
commit d2a397bcf8
5 changed files with 229 additions and 0 deletions
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41
include/net/mqtt.h
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@ -26,6 +26,7 @@
#include <zephyr.h>
#include <zephyr/types.h>
#include <net/tls_credentials.h>
#ifdef __cplusplus
extern "C" {
@ -312,13 +313,40 @@ struct mqtt_client;
typedef void (*mqtt_evt_cb_t)(struct mqtt_client *client,
const struct mqtt_evt *evt);
/** @brief TLS configuration for secure MQTT transports. */
struct mqtt_sec_config {
/** Indicates the preference for peer verification. */
int peer_verify;
/** Indicates the number of entries in the cipher list. */
u32_t cipher_count;
/** Indicates the list of ciphers to be used for the session.
* May be NULL to use the default ciphers.
*/
int *cipher_list;
/** Indicates the number of entries in the sec tag list. */
u32_t sec_tag_count;
/** Indicates the list of security tags to be used for the session. */
sec_tag_t *seg_tag_list;
/** Peer hostname for ceritificate verification.
* May be NULL to skip hostname verification.
*/
char *hostname;
};
/** @brief MQTT transport type. */
enum mqtt_transport_type {
/** Use non secure TCP transport for MQTT connection. */
MQTT_TRANSPORT_NON_SECURE = 0x00,
#if defined(CONFIG_MQTT_LIB_TLS)
/** Use secure TCP transport (TLS) for MQTT connection. */
MQTT_TRANSPORT_SECURE = 0x01,
#endif /* CONFIG_MQTT_LIB_TLS */
/** Shall not be used as a transport type.
* Indicator of maximum transport types possible.
@ -340,6 +368,19 @@ struct mqtt_transport {
/** Socket descriptor. */
int sock;
} tcp;
#if defined(CONFIG_MQTT_LIB_TLS)
/* TLS socket transport for MQTT */
struct {
/** Socket descriptor. */
int sock;
/** TLS configuration. See @ref mqtt_sec_config for
* details.
*/
struct mqtt_sec_config config;
} tls;
#endif /* CONFIG_MQTT_LIB_TLS */
};
};