client->xid = random_u32();
- r = dhcp_network_bind_raw_socket(client->index, &client->link);
+ r = dhcp_network_bind_raw_socket(client->index, &client->link, client->xid);
if (r < 0) {
client_stop(client, r);
client->state = DHCP_STATE_REBINDING;
client->attempt = 1;
- r = dhcp_network_bind_raw_socket(client->index, &client->link);
+ r = dhcp_network_bind_raw_socket(client->index, &client->link, client->xid);
if (r < 0) {
client_stop(client, r);
return 0;
return 0;
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
- if (cmsg->cmsg_level == SOL_PACKET && cmsg->cmsg_type == PACKET_AUXDATA) {
- struct tpacket_auxdata *aux = (void *)CMSG_DATA(cmsg);
+ if (cmsg->cmsg_level == SOL_PACKET &&
+ cmsg->cmsg_type == PACKET_AUXDATA &&
+ cmsg->cmsg_len == CMSG_LEN(sizeof(struct tpacket_auxdata))) {
+ struct tpacket_auxdata *aux = (struct tpacket_auxdata*)CMSG_DATA(cmsg);
checksum = !(aux->tp_status & TP_STATUS_CSUMNOTREADY);
break;