diff options
Diffstat (limited to 'src/VBox/Main/src-server/linux/NetIf-linux.cpp')
| -rw-r--r-- | src/VBox/Main/src-server/linux/NetIf-linux.cpp | 133 |
1 files changed, 97 insertions, 36 deletions
diff --git a/src/VBox/Main/src-server/linux/NetIf-linux.cpp b/src/VBox/Main/src-server/linux/NetIf-linux.cpp index 6fe799cf..2384cc52 100644 --- a/src/VBox/Main/src-server/linux/NetIf-linux.cpp +++ b/src/VBox/Main/src-server/linux/NetIf-linux.cpp @@ -4,7 +4,7 @@ */ /* - * Copyright (C) 2008 Oracle Corporation + * Copyright (C) 2008-2012 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; @@ -37,14 +37,23 @@ #include "netif.h" #include "Logging.h" +/** + * Obtain the name of the interface used for default routing. + * + * NOTE: There is a copy in Devices/Network/testcase/tstIntNet-1.cpp. + * + * @returns VBox status code. + * + * @param pszName The buffer of IFNAMSIZ+1 length where to put the name. + */ static int getDefaultIfaceName(char *pszName) { FILE *fp = fopen("/proc/net/route", "r"); char szBuf[1024]; char szIfName[17]; - char szAddr[129]; - char szGateway[129]; - char szMask[129]; + uint32_t uAddr; + uint32_t uGateway; + uint32_t uMask; int iTmp; unsigned uFlags; @@ -52,13 +61,13 @@ static int getDefaultIfaceName(char *pszName) { while (fgets(szBuf, sizeof(szBuf)-1, fp)) { - int n = sscanf(szBuf, "%16s %128s %128s %X %d %d %d %128s %d %d %d\n", - szIfName, szAddr, szGateway, &uFlags, &iTmp, &iTmp, &iTmp, - szMask, &iTmp, &iTmp, &iTmp); + int n = sscanf(szBuf, "%16s %x %x %x %d %d %d %x %d %d %d\n", + szIfName, &uAddr, &uGateway, &uFlags, &iTmp, &iTmp, &iTmp, + &uMask, &iTmp, &iTmp, &iTmp); if (n < 10 || !(uFlags & RTF_UP)) continue; - if (strcmp(szAddr, "00000000") == 0 && strcmp(szMask, "00000000") == 0) + if (uAddr == 0 && uMask == 0) { fclose(fp); strncpy(pszName, szIfName, 16); @@ -71,14 +80,55 @@ static int getDefaultIfaceName(char *pszName) return VERR_INTERNAL_ERROR; } +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); + RT_ZERO(Req); + RTStrCopy(Req.ifr_name, sizeof(Req.ifr_name), pszName); if (ioctl(iSocket, SIOCGIFHWADDR, &Req) >= 0) { switch (Req.ifr_hwaddr.sa_family) @@ -122,7 +172,7 @@ static int getInterfaceInfo(int iSocket, const char *pszName, PNETIFINFO pInfo) char szName[30]; for (;;) { - memset(szName, 0, sizeof(szName)); + RT_ZERO(szName); int n = fscanf(fp, "%08x%08x%08x%08x" " %02x %02x %02x %02x %20s\n", @@ -152,31 +202,10 @@ static int getInterfaceInfo(int iSocket, const char *pszName, PNETIFINFO pInfo) * 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 == 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); - } - } + pInfo->uSpeedMbits = getInterfaceSpeed(pszName); + else + pInfo->uSpeedMbits = 0; } return VINF_SUCCESS; } @@ -216,7 +245,7 @@ int NetIfList(std::list <ComObjPtr<HostNetworkInterface> > &list) IfObj.createObject(); HostNetworkInterfaceType_T enmType; - if (strncmp("vboxnet", pszName, 7)) + if (strncmp(pszName, RT_STR_TUPLE("vboxnet"))) enmType = HostNetworkInterfaceType_Bridged; else enmType = HostNetworkInterfaceType_HostOnly; @@ -251,3 +280,35 @@ int NetIfGetConfigByName(PNETIFINFO pInfo) close(sock); return rc; } + +/** + * Retrieve the physical link speed in megabits per second. If the interface is + * not up or otherwise unavailable the zero speed is returned. + * + * @returns VBox status code. + * + * @param pcszIfName Interface name. + * @param puMbits Where to store the link speed. + */ +int NetIfGetLinkSpeed(const char *pcszIfName, uint32_t *puMbits) +{ + int sock = socket(AF_INET, SOCK_DGRAM, 0); + if (sock < 0) + return VERR_OUT_OF_RESOURCES; + struct ifreq Req; + RT_ZERO(Req); + RTStrCopy(Req.ifr_name, sizeof(Req.ifr_name), pcszIfName); + if (ioctl(sock, SIOCGIFHWADDR, &Req) >= 0) + { + if (ioctl(sock, SIOCGIFFLAGS, &Req) >= 0) + if (Req.ifr_flags & IFF_UP) + { + close(sock); + *puMbits = getInterfaceSpeed(pcszIfName); + return VINF_SUCCESS; + } + } + close(sock); + *puMbits = 0; + return VWRN_NOT_FOUND; +} |