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cpu/esp32: fix of maximum frame length in esp_wifi

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Since complete MAC frames are handled, ETHERNET_MAX_LEN has to be used instead of ETHERNET_DATA_LEN for buffer sizes and length checks.
This commit is contained in:
Gunar Schorcht 2019-01-21 15:26:18 +01:00
parent 676a615996
commit 5020c30970
2 changed files with 4 additions and 4 deletions
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4
cpu/esp32/esp-wifi/esp_wifi_netdev.c
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@ -79,7 +79,7 @@ esp_err_t _esp_wifi_rx_cb(void *buffer, uint16_t len, void *eb)
DEBUG("%s: buf=%p len=%d eb=%p\n", __func__, buffer, len, eb);
if ((buffer == NULL) || (len >= ETHERNET_DATA_LEN)) {
if ((buffer == NULL) || (len >= ETHERNET_MAX_LEN)) {
if (eb != NULL) {
esp_wifi_internal_free_rx_buffer(eb);
}
@ -298,7 +298,7 @@ static int _esp_wifi_send(netdev_t *netdev, const iolist_t *iolist)
/* load packet data into TX buffer */
for (const iolist_t *iol = iolist; iol; iol = iol->iol_next) {
if (dev->tx_len + iol->iol_len > ETHERNET_DATA_LEN) {
if (dev->tx_len + iol->iol_len > ETHERNET_MAX_LEN) {
mutex_unlock(&dev->dev_lock);
return -EOVERFLOW;
}

4
cpu/esp32/esp-wifi/esp_wifi_netdev.h
View File

@ -38,10 +38,10 @@ typedef struct
netdev_t netdev; /**< netdev parent struct */
uint16_t rx_len; /**< number of bytes received */
uint8_t rx_buf[ETHERNET_DATA_LEN]; /**< receive buffer */
uint8_t rx_buf[ETHERNET_MAX_LEN]; /**< receive buffer */
uint16_t tx_len; /**< number of bytes in transmit buffer */
uint8_t tx_buf[ETHERNET_DATA_LEN]; /**< transmit buffer */
uint8_t tx_buf[ETHERNET_MAX_LEN]; /**< transmit buffer */
uint32_t event; /**< received event */
bool connected; /**< indicates whether connected to AP */