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coap_dtls_internal.h File Reference

Internal CoAP DTLS support. More...

`#include "coap_internal.h"`
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## Macros

#define | COAP_DTLS_RETRANSMIT_COAP_TICKS (COAP_DTLS_RETRANSMIT_MS * COAP_TICKS_PER_SECOND / 1000)

## Functions

void * | coap_dtls_new_context (coap_context_t *coap_context)
| Creates a new DTLS context for the given `coap_context`.
int | coap_dtls_context_set_spsk (coap_context_t *coap_context, coap_dtls_spsk_t *setup_data)
| Set the DTLS context's default server PSK information.
int | coap_dtls_context_set_cpsk (coap_context_t *coap_context, coap_dtls_cpsk_t *setup_data)
| Set the DTLS context's default client PSK information.
int | coap_dtls_context_set_pki (coap_context_t *coap_context, const coap_dtls_pki_t *setup_data, const coap_dtls_role_t role)
| Set the DTLS context's default server PKI information.
int | coap_dtls_context_set_pki_root_cas (coap_context_t *coap_context, const char *ca_file, const char *ca_dir)
| Set the dtls context's default Root CA information for a client or server.
int | coap_dtls_context_check_keys_enabled (coap_context_t *coap_context)
| Check whether one of the coap_dtls_context_set_{psk|pki}() functions have been called.
void | coap_dtls_free_context (void *dtls_context)
| Releases the storage allocated for `dtls_context`.
void * | coap_dtls_new_client_session (coap_session_t *coap_session)
| Create a new client-side session.
void * | coap_dtls_new_server_session (coap_session_t *coap_session)
| Create a new DTLS server-side session.
void | coap_dtls_free_session (coap_session_t *coap_session)
| Terminates the DTLS session (may send an ALERT if necessary) then frees the underlying TLS library object containing security parameters for the session.
void | coap_dtls_session_update_mtu (coap_session_t *coap_session)
| Notify of a change in the CoAP session's MTU, for example after a PMTU update.
ssize_t | coap_dtls_send (coap_session_t *coap_session, const uint8_t *data, size_t data_len)
| Send data to a DTLS peer.
int | coap_dtls_is_context_timeout (void)
| Check if timeout is handled per CoAP session or per CoAP context.
coap_tick_t | coap_dtls_get_context_timeout (void *dtls_context)
| Do all pending retransmits and get next timeout.
coap_tick_t | coap_dtls_get_timeout (coap_session_t *coap_session, coap_tick_t now)
| Get next timeout for this session.
int | coap_dtls_handle_timeout (coap_session_t *coap_session)
| Handle a DTLS timeout expiration.
int | coap_dtls_receive (coap_session_t *coap_session, const uint8_t *data, size_t data_len)
| Handling incoming data from a DTLS peer.
int | coap_dtls_hello (coap_session_t *coap_session, const uint8_t *data, size_t data_len)
| Handling client HELLO messages from a new candiate peer.
void | coap_dtls_establish (coap_session_t *session)
| Layer function interface for layer below DTLS connect being established.
void | coap_dtls_close (coap_session_t *session)
| Layer function interface for DTLS close for a session.
unsigned int | coap_dtls_get_overhead (coap_session_t *coap_session)
| Get DTLS overhead over cleartext PDUs.
void * | coap_tls_new_client_session (coap_session_t *coap_session)
| Create a new TLS client-side session.
void * | coap_tls_new_server_session (coap_session_t *coap_session)
| Create a TLS new server-side session.
void | coap_tls_free_session (coap_session_t *coap_session)
| Terminates the TLS session (may send an ALERT if necessary) then frees the underlying TLS library object containing security parameters for the session.
ssize_t | coap_tls_write (coap_session_t *coap_session, const uint8_t *data, size_t data_len)
| Send data to a TLS peer, with implicit flush.
ssize_t | coap_tls_read (coap_session_t *coap_session, uint8_t *data, size_t data_len)
| Read some data from a TLS peer.
void | coap_tls_establish (coap_session_t *session)
| Layer function interface for layer below TLS accept/connect being established.
void | coap_tls_close (coap_session_t *session)
| Layer function interface for TLS close for a session.
const coap_bin_const_t * | coap_get_session_client_psk_key (const coap_session_t *coap_session)
| Get the current client's PSK key.
const coap_bin_const_t * | coap_get_session_client_psk_identity (const coap_session_t *coap_session)
| Get the current client's PSK identity.
const coap_bin_const_t * | coap_get_session_server_psk_key (const coap_session_t *coap_session)
| Get the current server's PSK key.
const coap_bin_const_t * | coap_get_session_server_psk_hint (const coap_session_t *coap_session)
| Get the current server's PSK identity hint.
void | coap_dtls_startup (void)
| Initialize the underlying (D)TLS Library layer.
void | coap_dtls_shutdown (void)
| Close down the underlying (D)TLS Library layer.
void * | coap_dtls_get_tls (const coap_session_t *session, coap_tls_library_t *tls_lib)
| Get the actual (D)TLS object for the session.

## Detailed Description

Internal CoAP DTLS support.

Definition in file coap_dtls_internal.h.