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mesh: add assert for network pdu len in relay message

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This commit is contained in:
Matthias Ringwald 2020-05-13 17:42:57 +02:00
parent 3bf6954eed
commit 972841451c
1 changed files with 6 additions and 3 deletions
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9
src/mesh/mesh_network.c
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@ -418,15 +418,18 @@ static void mesh_network_relay_message(mesh_network_pdu_t * network_pdu){
uint8_t ctl_in_bit_7 = ctl_ttl & 0x80;
uint8_t ttl = ctl_ttl & 0x7f;
// prepare pdu for resending
network_pdu->data[1] = ctl_in_bit_7 | (ttl - 1);
network_pdu->flags |= MESH_NETWORK_PDU_FLAGS_RELAY;
#ifdef LOG_NETWORK
printf("TX-Relay-NetworkPDU (%p): ", network_pdu);
printf_hexdump(network_pdu->data, network_pdu->len);
printf("^^ into network_pdus_queued\n");
#endif
// prepare pdu for resending
network_pdu->data[1] = ctl_in_bit_7 | (ttl - 1);
network_pdu->flags |= MESH_NETWORK_PDU_FLAGS_RELAY;
uint8_t net_mic_len = ctl_in_bit_7 ? 8 : 4;
btstack_assert((network_pdu->len + net_mic_len) <= 29);
// queue up
btstack_linked_list_add_tail(&network_pdus_queued, (btstack_linked_item_t *) network_pdu);