static rofl_result_t netfpga_init_port(switch_port_t* port){
struct ifreq interface;
netfpga_port_t* nport = (netfpga_port_t*)malloc(sizeof(*nport));
char *useless;
//fprintf(stderr, "device= %s \n",dev);
useless = pcap_lookupdev(port->name); //test if device exist// gives char pointer, why not pcap_if_t?
if (useless == NULL) {
ROFL_ERR( "Couldn't find device: error= %s; no permission to listen on interface or other failure \n", port->name);
return ROFL_FAILURE;
}
ROFL_DEBUG("Device :%s found\n", port->name);
char errbuf[PCAP_ERRBUF_SIZE];
nport->pcap_fd = pcap_open_live(port->name, BUFSIZ, 1, 0, errbuf);//wait until the packet arrive, NO TIMEOUT
if (nport->pcap_fd == NULL) {
ROFL_ERR( "Couldn't open device %s : %s\n",port->name, errbuf);
return ROFL_FAILURE;
}
nport->fd = pcap_get_selectable_fd(nport->pcap_fd);
nport->test=25;
ROFL_DEBUG("pcap_open_live: socket opened \n ");
ROFL_DEBUG("Ports.c creating socket over %s inerface\n", port->name);
strncpy(interface.ifr_ifrn.ifrn_name, port->name, IFNAMSIZ/*&SWITCH_PORT_MAX_LEN_NAME*/);
int flags;
/* Set non-blocking mode. */
flags = fcntl(nport->fd, F_GETFL, 0);
if(fcntl(nport->fd, F_SETFL, flags | O_NONBLOCK) < 0) {
return ROFL_FAILURE;
}
//Store in platform state and return
port->platform_port_state = (platform_port_state_t*) nport;
return ROFL_SUCCESS;
}
rofl_result_t netfpga_write_reg(netfpga_device_t *nfpga, uint32_t reg_id, uint32_t value){
uint64_t reg;
reg = ((uint64_t)reg_id << 32) + (uint64_t)value;
if(ioctl(nfpga->fd, NETFPGA_IOCTL_CMD_WRITE_REG,reg) != 0){
ROFL_ERR("ioctl failed on writing register fd: %d REG: 0x%x\n", nfpga->fd, reg_id);
return ROFL_FAILURE;
}
return ROFL_SUCCESS;
}
rofl_result_t netfpga_read_reg(netfpga_device_t *nfpga, uint32_t reg_id, uint32_t *value){
uint64_t v=(uint64_t)reg_id;
//Calling ioctl
if(ioctl(nfpga->fd, NETFPGA_IOCTL_CMD_READ_REG, &v) != 0){
ROFL_ERR("ioctl failed on reading register fd: %d REG: 0x%x\n", nfpga->fd, reg_id);
return ROFL_FAILURE;
}
//Put value and return
*value = (uint32_t)v;
return ROFL_SUCCESS;
}
