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#ifdef SDLMAME_WIN32
#include "../windows/netdev_pcap.c"
#else
#include <pcap.h>
#include "emu.h"
#include "osdnet.h"
class netdev_pcap : public netdev
{
public:
netdev_pcap(const char *name, class device_network_interface *ifdev, int rate);
~netdev_pcap();
int send(UINT8 *buf, int len);
void set_mac(const char *mac);
protected:
int recv_dev(UINT8 **buf);
private:
pcap_t *m_p;
};
netdev_pcap::netdev_pcap(const char *name, class device_network_interface *ifdev, int rate)
: netdev(ifdev, rate)
{
char errbuf[PCAP_ERRBUF_SIZE];
m_p = pcap_open_live(name, 65535, 1, 1, errbuf);
if(!m_p)
{
mame_printf_verbose("Unable to open %s: %s\n", name, errbuf);
return;
}
if(pcap_set_datalink(m_p, DLT_EN10MB) == -1)
{
mame_printf_verbose("Unable to set %s to ethernet", name);
pcap_close(m_p);
m_p = NULL;
return;
}
set_mac(get_mac());
}
void netdev_pcap::set_mac(const char *mac)
{
char filter[256];
struct bpf_program fp;
if(!m_p) return;
sprintf(filter, "ether dst %.2X:%.2X:%.2X:%.2X:%.2X:%.2X or ether multicast or ether broadcast", (unsigned char)mac[0], (unsigned char)mac[1], (unsigned char)mac[2],(unsigned char)mac[3], (unsigned char)mac[4], (unsigned char)mac[5]);
pcap_compile(m_p, &fp, filter, 1, 0);
pcap_setfilter(m_p, &fp);
}
int netdev_pcap::send(UINT8 *buf, int len)
{
if(!m_p) return 0;
return (!pcap_sendpacket(m_p, buf, len))?len:0;
}
int netdev_pcap::recv_dev(UINT8 **buf)
{
struct pcap_pkthdr *header;
if(!m_p) return 0;
return (pcap_next_ex(m_p, &header, (const u_char **)buf) == 1)?header->len:0;
}
netdev_pcap::~netdev_pcap()
{
if(m_p) pcap_close(m_p);
}
static CREATE_NETDEV(create_pcap)
{
class netdev_pcap *dev = global_alloc(netdev_pcap(ifname, ifdev, rate));
return dynamic_cast<netdev *>(dev);
}
void init_pcap()
{
pcap_if_t *devs;
char errbuf[PCAP_ERRBUF_SIZE];
if(pcap_findalldevs(&devs, errbuf) == -1)
{
mame_printf_verbose("Unable to get network devices: %s\n", errbuf);
return;
}
if (devs)
{
while(devs->next)
{
add_netdev(devs->name, devs->description, create_pcap);
devs = devs->next;
}
}
}
void deinit_pcap()
{
clear_netdev();
}
#endif // SDLMAME_WIN32
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