// Ethernet device list by BPF API
TOKEN_LIST *GetEthListBpf()
{
struct ifaddrs *ifadrs;
struct sockaddr_dl *sockadr;
LIST *o;
TOKEN_LIST *t;
int i;
o = NewListFast(CompareStr);
// Enumerate network devices
if(getifaddrs( &ifadrs ) == 0)
{
struct ifaddrs *ifadr = ifadrs;
while(ifadr)
{
sockadr = (struct sockaddr_dl*)ifadr->ifa_addr;
if(sockadr->sdl_family == AF_LINK && sockadr->sdl_type == IFT_ETHER)
{
// Is this Ethernet device?
if(!IsInListStr(o,ifadr->ifa_name))
{
// Ignore the foregoing device (for device which have multiple MAC address)
Add(o, CopyStr(ifadr->ifa_name));
}
}
ifadr = ifadr -> ifa_next;
}
freeifaddrs(ifadrs);
}
Sort(o);
t = ZeroMalloc(sizeof(TOKEN_LIST));
t->NumTokens = LIST_NUM(o);
t->Token = ZeroMalloc(sizeof(char *) * t->NumTokens);
for (i = 0;i < LIST_NUM(o);i++)
{
t->Token[i] = LIST_DATA(o, i);
}
ReleaseList(o);
return t;
}
// アダプタ一覧を取得 (BPF)
TOKEN_LIST *GetEthListBpf()
{
struct ifaddrs *ifadrs;
struct sockaddr_dl *sockadr;
LIST *o;
TOKEN_LIST *t;
int i;
o = NewListFast(CompareStr);
// ネットワークデバイスの一覧を取得
if(getifaddrs( &ifadrs ) == 0)
{
struct ifaddrs *ifadr = ifadrs;
while(ifadr)
{
sockadr = (struct sockaddr_dl*)ifadr->ifa_addr;
if(sockadr->sdl_family == AF_LINK && sockadr->sdl_type == IFT_ETHER)
{
// Ethernet デバイスか？
if(!IsInListStr(o,ifadr->ifa_name))
{
// 既存でなければ追加（複数のMACアドレスを持つインターフェースへの対策）
Add(o, CopyStr(ifadr->ifa_name));
}
}
ifadr = ifadr -> ifa_next;
}
freeifaddrs(ifadrs);
}
Sort(o);
t = ZeroMalloc(sizeof(TOKEN_LIST));
t->NumTokens = LIST_NUM(o);
t->Token = ZeroMalloc(sizeof(char *) * t->NumTokens);
for (i = 0;i < LIST_NUM(o);i++)
{
t->Token[i] = LIST_DATA(o, i);
}
ReleaseList(o);
return t;
}
// Get Ethernet device list on Linux
TOKEN_LIST *GetEthListLinux()
{
struct ifreq ifr;
TOKEN_LIST *t;
UINT i, n;
int s;
LIST *o;
char name[MAX_SIZE];
o = NewListFast(CompareStr);
s = UnixEthOpenRawSocket();
if (s != INVALID_SOCKET)
{
n = 0;
for (i = 0;;i++)
{
Zero(&ifr, sizeof(ifr));
ifr.ifr_ifindex = i;
if (ioctl(s, SIOCGIFNAME, &ifr) >= 0)
{
n = 0;
StrCpy(name, sizeof(name), ifr.ifr_name);
Zero(&ifr, sizeof(ifr));
StrCpy(ifr.ifr_name, sizeof(ifr.ifr_name), name);
if (ioctl(s, SIOCGIFHWADDR, &ifr) >= 0)
{
UINT type = ifr.ifr_hwaddr.sa_family;
if (type == 1 || type == 2 || type == 6 || type == 800 || type == 801)
{
if (IsInListStr(o, name) == false)
{
if (StartWith(name, "tap_") == false)
{
Add(o, CopyStr(name));
}
}
}
}
}
else
{
n++;
if (n >= 64)
{
break;
}
}
}
closesocket(s);
}
Sort(o);
t = ZeroMalloc(sizeof(TOKEN_LIST));
t->NumTokens = LIST_NUM(o);
t->Token = ZeroMalloc(sizeof(char *) * t->NumTokens);
for (i = 0;i < LIST_NUM(o);i++)
{
char *name = LIST_DATA(o, i);
t->Token[i] = name;
}
ReleaseList(o);
return t;
}
// Open Ethernet device (Linux)
ETH *OpenEthLinux(char *name, bool local, bool tapmode, char *tapaddr)
{
ETH *e;
struct ifreq ifr;
struct sockaddr_ll addr;
int s;
int index;
bool aux_ok = false;
CANCEL *c;
// Validate arguments
if (name == NULL)
{
return NULL;
}
if (tapmode)
{
#ifndef NO_VLAN
// In tap mode
VLAN *v = NewTap(name, tapaddr);
if (v == NULL)
{
return NULL;
}
e = ZeroMalloc(sizeof(ETH));
e->Name = CopyStr(name);
e->Title = CopyStr(name);
e->Cancel = VLanGetCancel(v);
e->IfIndex = 0;
e->Socket = INVALID_SOCKET;
e->Tap = v;
return e;
#else // NO_VLAN
return NULL;
#endif // NO_VLAN
}
s = UnixEthOpenRawSocket();
if (s == INVALID_SOCKET)
{
return NULL;
}
Zero(&ifr, sizeof(ifr));
StrCpy(ifr.ifr_name, sizeof(ifr.ifr_name), name);
if (ioctl(s, SIOCGIFINDEX, &ifr) < 0)
{
closesocket(s);
return NULL;
}
index = ifr.ifr_ifindex;
Zero(&addr, sizeof(addr));
addr.sll_family = PF_PACKET;
addr.sll_protocol = htons(ETH_P_ALL);
addr.sll_ifindex = index;
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0)
{
closesocket(s);
return NULL;
}
if (local == false)
{
// Enable promiscious mode
Zero(&ifr, sizeof(ifr));
StrCpy(ifr.ifr_name, sizeof(ifr.ifr_name), name);
if (ioctl(s, SIOCGIFFLAGS, &ifr) < 0)
{
// Failed
closesocket(s);
return NULL;
}
ifr.ifr_flags |= IFF_PROMISC;
if (ioctl(s, SIOCSIFFLAGS, &ifr) < 0)
{
// Failed
closesocket(s);
return NULL;
}
}
if (true)
{
int val = 1;
int ss_ret = setsockopt(s, SOL_PACKET, MY_PACKET_AUXDATA, &val, sizeof(val));
if (ss_ret < 0)
{
Debug("eth(%s): setsockopt: PACKET_AUXDATA failed.\n", name);
}
else
{
Debug("eth(%s): setsockopt: PACKET_AUXDATA ok.\n", name);
aux_ok = true;
}
}
e = ZeroMalloc(sizeof(ETH));
e->Name = CopyStr(name);
e->Title = CopyStr(name);
e->IfIndex = index;
e->Socket = s;
e->Linux_IsAuxDataSupported = aux_ok;
c = NewCancel();
UnixDeletePipe(c->pipe_read, c->pipe_write);
c->pipe_read = c->pipe_write = -1;
UnixSetSocketNonBlockingMode(s, true);
c->SpecialFlag = true;
c->pipe_read = s;
e->Cancel = c;
// Get MTU
e->InitialMtu = EthGetMtu(e);
if (tapmode == false)
{
if (GetGlobalServerFlag(GSF_LOCALBRIDGE_NO_DISABLE_OFFLOAD) == false)
{
bool b = false;
LockList(eth_offload_list);
{
if (IsInListStr(eth_offload_list, name) == false)
{
b = true;
Add(eth_offload_list, CopyStr(name));
}
}
UnlockList(eth_offload_list);
if (b)
{
// Disable hardware offloading
UnixDisableInterfaceOffload(name);
}
}
}
return e;
}