static uint32_t getInterfaceSpeed(const char *pszName)
{
/*
* I wish I could do simple ioctl here, but older kernels require root
* privileges for any ethtool commands.
*/
char szBuf[256];
uint32_t uSpeed = 0;
/* First, we try to retrieve the speed via sysfs. */
RTStrPrintf(szBuf, sizeof(szBuf), "/sys/class/net/%s/speed", pszName);
FILE *fp = fopen(szBuf, "r");
if (fp)
{
if (fscanf(fp, "%u", &uSpeed) != 1)
uSpeed = 0;
fclose(fp);
}
if (uSpeed == 10)
{
/* Check the cable is plugged in at all */
unsigned uCarrier = 0;
RTStrPrintf(szBuf, sizeof(szBuf), "/sys/class/net/%s/carrier", pszName);
fp = fopen(szBuf, "r");
if (fp)
{
if (fscanf(fp, "%u", &uCarrier) != 1 || uCarrier == 0)
uSpeed = 0;
fclose(fp);
}
}
if (uSpeed == 0)
{
/* Failed to get speed via sysfs, go to plan B. */
int rc = NetIfAdpCtlOut(pszName, "speed", szBuf, sizeof(szBuf));
if (RT_SUCCESS(rc))
uSpeed = RTStrToUInt32(szBuf);
}
return uSpeed;
}
static int getInterfaceInfo(int iSocket, const char *pszName, PNETIFINFO pInfo)
{
// Zeroing out pInfo is a bad idea as it should contain both short and long names at
// this point. So make sure the structure is cleared by the caller if necessary!
// memset(pInfo, 0, sizeof(*pInfo));
struct ifreq Req;
memset(&Req, 0, sizeof(Req));
strncpy(Req.ifr_name, pszName, sizeof(Req.ifr_name) - 1);
if (ioctl(iSocket, SIOCGIFHWADDR, &Req) >= 0)
{
switch (Req.ifr_hwaddr.sa_family)
{
case ARPHRD_ETHER:
pInfo->enmMediumType = NETIF_T_ETHERNET;
break;
default:
pInfo->enmMediumType = NETIF_T_UNKNOWN;
break;
}
/* Generate UUID from name and MAC address. */
RTUUID uuid;
RTUuidClear(&uuid);
memcpy(&uuid, Req.ifr_name, RT_MIN(sizeof(Req.ifr_name), sizeof(uuid)));
uuid.Gen.u8ClockSeqHiAndReserved = (uuid.Gen.u8ClockSeqHiAndReserved & 0x3f) | 0x80;
uuid.Gen.u16TimeHiAndVersion = (uuid.Gen.u16TimeHiAndVersion & 0x0fff) | 0x4000;
memcpy(uuid.Gen.au8Node, &Req.ifr_hwaddr.sa_data, sizeof(uuid.Gen.au8Node));
pInfo->Uuid = uuid;
memcpy(&pInfo->MACAddress, Req.ifr_hwaddr.sa_data, sizeof(pInfo->MACAddress));
if (ioctl(iSocket, SIOCGIFADDR, &Req) >= 0)
memcpy(pInfo->IPAddress.au8,
&((struct sockaddr_in *)&Req.ifr_addr)->sin_addr.s_addr,
sizeof(pInfo->IPAddress.au8));
if (ioctl(iSocket, SIOCGIFNETMASK, &Req) >= 0)
memcpy(pInfo->IPNetMask.au8,
&((struct sockaddr_in *)&Req.ifr_addr)->sin_addr.s_addr,
sizeof(pInfo->IPNetMask.au8));
if (ioctl(iSocket, SIOCGIFFLAGS, &Req) >= 0)
pInfo->enmStatus = Req.ifr_flags & IFF_UP ? NETIF_S_UP : NETIF_S_DOWN;
FILE *fp = fopen("/proc/net/if_inet6", "r");
if (fp)
{
RTNETADDRIPV6 IPv6Address;
unsigned uIndex, uLength, uScope, uTmp;
char szName[30];
for (;;)
{
memset(szName, 0, sizeof(szName));
int n = fscanf(fp,
"%08x%08x%08x%08x"
" %02x %02x %02x %02x %20s\n",
&IPv6Address.au32[0], &IPv6Address.au32[1],
&IPv6Address.au32[2], &IPv6Address.au32[3],
&uIndex, &uLength, &uScope, &uTmp, szName);
if (n == EOF)
break;
if (n != 9 || uLength > 128)
{
Log(("getInterfaceInfo: Error while reading /proc/net/if_inet6, n=%d uLength=%u\n",
n, uLength));
break;
}
if (!strcmp(Req.ifr_name, szName))
{
pInfo->IPv6Address.au32[0] = htonl(IPv6Address.au32[0]);
pInfo->IPv6Address.au32[1] = htonl(IPv6Address.au32[1]);
pInfo->IPv6Address.au32[2] = htonl(IPv6Address.au32[2]);
pInfo->IPv6Address.au32[3] = htonl(IPv6Address.au32[3]);
ASMBitSetRange(&pInfo->IPv6NetMask, 0, uLength);
}
}
fclose(fp);
}
/*
* Don't even try to get speed for non-Ethernet interfaces, it only
* produces errors.
*/
pInfo->uSpeedMbits = 0;
if (pInfo->enmMediumType == NETIF_T_ETHERNET)
{
/*
* I wish I could do simple ioctl here, but older kernels require root
* privileges for any ethtool commands.
*/
char szBuf[256];
/* First, we try to retrieve the speed via sysfs. */
RTStrPrintf(szBuf, sizeof(szBuf), "/sys/class/net/%s/speed", pszName);
fp = fopen(szBuf, "r");
if (fp)
{
if (fscanf(fp, "%u", &pInfo->uSpeedMbits) != 1)
pInfo->uSpeedMbits = 0;
fclose(fp);
}
if (pInfo->uSpeedMbits == 10)
{
/* Check the cable is plugged in at all */
unsigned uCarrier = 0;
RTStrPrintf(szBuf, sizeof(szBuf), "/sys/class/net/%s/carrier", pszName);
fp = fopen(szBuf, "r");
if (fp)
{
if (fscanf(fp, "%u", &uCarrier) != 1 || uCarrier == 0)
pInfo->uSpeedMbits = 0;
fclose(fp);
}
}
if (pInfo->uSpeedMbits == 0)
{
/* Failed to get speed via sysfs, go to plan B. */
int rc = NetIfAdpCtlOut(pszName, "speed", szBuf, sizeof(szBuf));
if (RT_SUCCESS(rc))
pInfo->uSpeedMbits = RTStrToUInt32(szBuf);
}
}
}
return VINF_SUCCESS;
}
