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altcp_tls: some fixes

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- added `altcp_tls_free_config()`.
- added `altcp_tls_context()` function to allow mbedtls parameter tweak.

  Since state structure isn't exported, this allow application to get
  internal context (port dependent) to tweak it.

- free altcp_pcb when lower error callback called.
This commit is contained in:
David Girault 2017-08-07 15:45:11 +02:00 committed by goldsimon
parent ee89d906ec
commit 0486100a2b
2 changed files with 35 additions and 2 deletions
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26
src/apps/altcp_tls/altcp_tls_mbedtls.c
View File

@ -537,10 +537,11 @@ altcp_mbedtls_lower_err(void *arg, err_t err)
{
struct altcp_pcb *conn = (struct altcp_pcb *)arg;
if (conn) {
/* @todo: deallocate/close this connection? */
conn->inner_conn = NULL; /* already freed */
if (conn->err) {
conn->err(conn->arg, err);
}
altcp_free(conn);
}
}
@ -606,6 +607,16 @@ altcp_tls_new(struct altcp_tls_config* config, struct altcp_pcb *inner_pcb)
return ret;
}
void *
altcp_tls_context (struct altcp_pcb *conn)
{
if (conn && conn->state) {
altcp_mbedtls_state_t *state = conn->state;
return &state->ssl_context;
}
return NULL;
}
#if ALTCP_MBEDTLS_DEBUG != LWIP_DBG_OFF
static void
altcp_mbedtls_debug(void *ctx, int level, const char *file, int line, const char *str)
@ -755,6 +766,13 @@ altcp_tls_create_config_client(const u8_t *cert, size_t cert_len)
return conf;
}
void
altcp_tls_free_config(struct altcp_tls_config *conf)
{
altcp_mbedtls_free_config (conf);
}
/* "virtual" functions */
static void
altcp_mbedtls_set_poll(struct altcp_pcb *conn, u8_t interval)
@ -954,8 +972,12 @@ altcp_mbedtls_dealloc(struct altcp_pcb *conn)
mbedtls_ssl_free(&state->ssl_context);
state->flags = 0;
altcp_mbedtls_free(state->conf, state);
conn->state = NULL;
}
if (conn->inner_conn) {
altcp_free(conn->inner_conn);
conn->inner_conn = NULL;
}
conn->state = NULL;
}
}

11
src/include/lwip/altcp_tls.h
View File

@ -72,11 +72,22 @@ struct altcp_tls_config *altcp_tls_create_config_server_privkey_cert(const u8_t
*/
struct altcp_tls_config *altcp_tls_create_config_client(const u8_t *cert, size_t cert_len);
/** @ingroup altcp_tls
* Free an ALTCP_TLS configuration handle
*/
void altcp_tls_free_config(struct altcp_tls_config *conf);
/** @ingroup altcp_tls
* Create new ALTCP_TLS layer
*/
struct altcp_pcb *altcp_tls_new(struct altcp_tls_config* config, struct altcp_pcb *inner_pcb);
/** @ingroup altcp_tls
* Return pointer to internal TLS context so application can tweak it.
* Real type depends on port (e.g. mbedtls)
*/
void *altcp_tls_context (struct altcp_pcb *conn);
#ifdef __cplusplus
}
#endif