dsm.h
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1 /*
2  * SPDX-FileCopyrightText: 2021 ML!PA Consulting GmbH
3  * SPDX-License-Identifier: LGPL-2.1-only
4  */
5 
6 #pragma once
7 
29 #include <stdint.h>
30 
31 #include "dtls.h"
32 #include "net/sock/dtls.h"
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37 
41 #ifndef CONFIG_DSM_PEER_MAX
42 #define CONFIG_DSM_PEER_MAX (CONFIG_DTLS_PEER_MAX)
43 #endif
44 
48 typedef enum {
49  NO_SPACE = -1,
50  SESSION_STATE_NONE = 0,
51  SESSION_STATE_HANDSHAKE,
52  SESSION_STATE_ESTABLISHED
53 } dsm_state_t;
54 
60 void dsm_init(void);
61 
78 dsm_state_t dsm_store(sock_dtls_t *sock, sock_dtls_session_t *session,
79  dsm_state_t new_state, bool restore);
80 
89 void dsm_remove(sock_dtls_t *sock, sock_dtls_session_t *session);
90 
96 uint8_t dsm_get_num_maximum_slots(void);
97 
103 uint8_t dsm_get_num_available_slots(void);
104 
114 ssize_t dsm_get_least_recently_used_session(sock_dtls_t *sock, sock_dtls_session_t *session);
115 
116 #ifdef __cplusplus
117 }
118 #endif
119 
dsm_remove
void dsm_remove(sock_dtls_t *sock, sock_dtls_session_t *session)
Removes a session.
dsm_store
dsm_state_t dsm_store(sock_dtls_t *sock, sock_dtls_session_t *session, dsm_state_t new_state, bool restore)
Stores a session.
dsm_get_num_maximum_slots
uint8_t dsm_get_num_maximum_slots(void)
Returns the maximum number of sessions slots.
dsm_get_num_available_slots
uint8_t dsm_get_num_available_slots(void)
Returns the number of available session slots.
dsm_get_least_recently_used_session
ssize_t dsm_get_least_recently_used_session(sock_dtls_t *sock, sock_dtls_session_t *session)
Returns the least recently used session.
dsm_init
void dsm_init(void)
Initialize the DTLS session management.
dsm_state_t
dsm_state_t
Session management states.
Definition: dsm.h:48
dtls.h
DTLS sock definitions.
sock_dtls_session
Information about remote client connected to the server.
Definition: sock_dtls_types.h:88
sock_dtls
Information about DTLS sock.
Definition: sock_dtls_types.h:40