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 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/VBox/Main/src-server/linux/NetIf-linux.cpp b/src/VBox/Main/src-server/linux/NetIf-linux.cpp index f4a99eeb..83ab3b3b 100644 --- a/src/VBox/Main/src-server/linux/NetIf-linux.cpp +++ b/src/VBox/Main/src-server/linux/NetIf-linux.cpp @@ -43,6 +43,7 @@ #include <stdio.h> #include <unistd.h> #include <iprt/asm.h> +#include <errno.h> #include "HostNetworkInterfaceImpl.h" #include "netif.h" @@ -154,7 +155,27 @@ static int getInterfaceInfo(int iSocket, const char *pszName, PNETIFINFO pInfo) /* Generate UUID from name and MAC address. */ RTUUID uuid; RTUuidClear(&uuid); +#ifdef VBOXNETFLT_LINUX_NAMESPACE_SUPPORT + uuid.au32[0] = 0; /* Use 0 as the indicator of missing namespace info. */ + /* + * Namespace links use the following naming convention: "net:[1234567890]". + * The maximum value of inode number is 4294967295, which gives up precisely + * 16 characters without terminating zero. + */ + char szBuf[24]; + ssize_t len = readlink("/proc/self/ns/net", szBuf, sizeof(szBuf) - 1); + if (len == -1) + Log(("NetIfList: Failed to get namespace for VBoxSVC, error %d\n", errno)); + else if (!RTStrStartsWith(szBuf, "net:[")) + Log(("NetIfList: Failed to get network namespace inode from %s\n", szBuf)); + else + uuid.au32[0] = RTStrToUInt32(szBuf + 5); + Log(("NetIfList: VBoxSVC namespace inode %u\n", uuid.au32[0])); + /* Hashing the name is probably an overkill as MAC addresses should ensure uniqueness */ + uuid.au32[1] = RTStrHash1(pszName); +#else /* !VBOXNETFLT_LINUX_NAMESPACE_SUPPORT */ memcpy(&uuid, Req.ifr_name, RT_MIN(sizeof(Req.ifr_name), sizeof(uuid))); +#endif /* !VBOXNETFLT_LINUX_NAMESPACE_SUPPORT */ uuid.Gen.u8ClockSeqHiAndReserved = (uint8_t)((uuid.Gen.u8ClockSeqHiAndReserved & 0x3f) | 0x80); uuid.Gen.u16TimeHiAndVersion = (uint16_t)((uuid.Gen.u16TimeHiAndVersion & 0x0fff) | 0x4000); memcpy(uuid.Gen.au8Node, &Req.ifr_hwaddr.sa_data, sizeof(uuid.Gen.au8Node)); |