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altcp: mbedtls: fix compiling altcp_mbedtls_lower_sent()

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This commit is contained in:
Simon Goldschmidt 2020-03-05 21:36:59 +01:00
parent 74cd9a8644
commit 21cde5dc9e
1 changed files with 9 additions and 7 deletions
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16
src/apps/altcp_tls/altcp_tls_mbedtls.c
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@ -513,25 +513,27 @@ altcp_mbedtls_lower_sent(void *arg, struct altcp_pcb *inner_conn, u16_t len)
struct altcp_pcb *conn = (struct altcp_pcb *)arg;
LWIP_UNUSED_ARG(inner_conn); /* for LWIP_NOASSERT */
if (conn) {
int overhead;
u16_t app_len;
altcp_mbedtls_state_t *state = (altcp_mbedtls_state_t *)conn->state;
LWIP_ASSERT("state", state != NULL);
LWIP_ASSERT("pcb mismatch", conn->inner_conn == inner_conn);
/* calculate TLS overhead part to not send it to application */
int overhead = state->overhead_bytes_adjust + state->ssl_context.out_left;
if ((unsigned)overhead > len)
overhead = state->overhead_bytes_adjust + state->ssl_context.out_left;
if ((unsigned)overhead > len) {
overhead = len;
}
/* remove ACKed bytes from overhead adjust counter */
state->overhead_bytes_adjust -= len;
/* try to send more if we failed before (may increase overhead adjust counter) */
mbedtls_ssl_flush_output(&state->ssl_context);
/* remove calculated overhead from ACKed bytes len */
len -= overhead;
app_len = len - (u16_t)overhead;
/* update application write counter and inform application */
if (len)
{
state->overhead_bytes_adjust += len;
if (app_len) {
state->overhead_bytes_adjust += app_len;
if (conn->sent)
return conn->sent(conn->arg, conn, len);
return conn->sent(conn->arg, conn, app_len);
}
}
return ERR_OK;