diff options
Diffstat (limited to 'src/VBox/Main/src-server/freebsd/NetIf-freebsd.cpp')
| -rw-r--r-- | src/VBox/Main/src-server/freebsd/NetIf-freebsd.cpp | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/src/VBox/Main/src-server/freebsd/NetIf-freebsd.cpp b/src/VBox/Main/src-server/freebsd/NetIf-freebsd.cpp new file mode 100644 index 00000000..5ce72ff8 --- /dev/null +++ b/src/VBox/Main/src-server/freebsd/NetIf-freebsd.cpp @@ -0,0 +1,460 @@ +/* $Id: NetIf-freebsd.cpp $ */ +/** @file + * Main - NetIfList, FreeBSD implementation. + */ + +/* + * Copyright (C) 2008-2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + +/* + * Original (C) 2009 Fredrik Lindberg <fli@shapeshifter.se>. Contributed + * to VirtualBox under the MIT license by the author. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define LOG_GROUP LOG_GROUP_MAIN_HOST +#include <sys/types.h> + +#include <sys/sysctl.h> +#include <sys/socket.h> +#include <sys/sockio.h> +#include <net/if.h> +#include <net/if_types.h> +#include <net80211/ieee80211_ioctl.h> + +#include <net/route.h> +/* + * route.h includes net/radix.h which for some reason defines Free as a wrapper + * around free. This collides with Free defined in xpcom/include/nsIMemory.h + * Undefine it and hope for the best + */ +#undef Free + +#include <net/if_dl.h> +#include <netinet/in.h> + +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <errno.h> + +#include <list> + +#include "HostNetworkInterfaceImpl.h" +#include "netif.h" +#include "LoggingNew.h" + +#define ROUNDUP(a) \ + ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) +#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) + +void extractAddresses(int iAddrMask, caddr_t cp, caddr_t cplim, struct sockaddr **pAddresses) +{ + struct sockaddr *sa; + + for (int i = 0; i < RTAX_MAX && cp < cplim; i++) { + if (!(iAddrMask & (1 << i))) + continue; + + sa = (struct sockaddr *)cp; + + pAddresses[i] = sa; + + ADVANCE(cp, sa); + } +} + +static int getDefaultIfaceIndex(unsigned short *pu16Index, int family) +{ + size_t cbNeeded; + char *pBuf, *pNext; + int aiMib[6]; + struct sockaddr *addresses[RTAX_MAX]; + aiMib[0] = CTL_NET; + aiMib[1] = PF_ROUTE; + aiMib[2] = 0; + aiMib[3] = family; /* address family */ + aiMib[4] = NET_RT_DUMP; + aiMib[5] = 0; + + if (sysctl(aiMib, 6, NULL, &cbNeeded, NULL, 0) < 0) + { + Log(("getDefaultIfaceIndex: Failed to get estimate for list size (errno=%d).\n", errno)); + return RTErrConvertFromErrno(errno); + } + if ((pBuf = (char*)malloc(cbNeeded)) == NULL) + return VERR_NO_MEMORY; + if (sysctl(aiMib, 6, pBuf, &cbNeeded, NULL, 0) < 0) + { + free(pBuf); + Log(("getDefaultIfaceIndex: Failed to retrieve interface table (errno=%d).\n", errno)); + return RTErrConvertFromErrno(errno); + } + + char *pEnd = pBuf + cbNeeded; + struct rt_msghdr *pRtMsg; + for (pNext = pBuf; pNext < pEnd; pNext += pRtMsg->rtm_msglen) + { + pRtMsg = (struct rt_msghdr *)pNext; + + if (pRtMsg->rtm_type != RTM_GET) + { + Log(("getDefaultIfaceIndex: Got message %u while expecting %u.\n", + pRtMsg->rtm_type, RTM_GET)); + //rc = VERR_INTERNAL_ERROR; + continue; + } + if ((char*)(pRtMsg + 1) < pEnd) + { + /* Extract addresses from the message. */ + extractAddresses(pRtMsg->rtm_addrs, (char *)(pRtMsg + 1), + pRtMsg->rtm_msglen + (char *)pRtMsg, addresses); + if ((pRtMsg->rtm_addrs & RTA_DST)) + { + if (addresses[RTAX_DST]->sa_family != AF_INET) + continue; + struct sockaddr_in *addr = (struct sockaddr_in *)addresses[RTAX_DST]; + struct sockaddr_in *mask = (struct sockaddr_in *)addresses[RTAX_NETMASK]; + if ((addr->sin_addr.s_addr == INADDR_ANY) && + mask && + (ntohl(mask->sin_addr.s_addr) == 0L || + mask->sin_len == 0)) + { + *pu16Index = pRtMsg->rtm_index; + free(pBuf); + return VINF_SUCCESS; + } + } + } + } + free(pBuf); + return VERR_INTERNAL_ERROR; + +} + +void extractAddressesToNetInfo(int iAddrMask, caddr_t cp, caddr_t cplim, PNETIFINFO pInfo) +{ + struct sockaddr *addresses[RTAX_MAX]; + + extractAddresses(iAddrMask, cp, cplim, addresses); + switch (addresses[RTAX_IFA]->sa_family) + { + case AF_INET: + if (!pInfo->IPAddress.u) + { + pInfo->IPAddress.u = ((struct sockaddr_in *)addresses[RTAX_IFA])->sin_addr.s_addr; + pInfo->IPNetMask.u = ((struct sockaddr_in *)addresses[RTAX_NETMASK])->sin_addr.s_addr; + } + break; + case AF_INET6: + if (!pInfo->IPv6Address.s.Lo && !pInfo->IPv6Address.s.Hi) + { + memcpy(pInfo->IPv6Address.au8, + ((struct sockaddr_in6 *)addresses[RTAX_IFA])->sin6_addr.__u6_addr.__u6_addr8, + sizeof(pInfo->IPv6Address)); + memcpy(pInfo->IPv6NetMask.au8, + ((struct sockaddr_in6 *)addresses[RTAX_NETMASK])->sin6_addr.__u6_addr.__u6_addr8, + sizeof(pInfo->IPv6NetMask)); + } + break; + default: + Log(("NetIfList: Unsupported address family: %u\n", addresses[RTAX_IFA]->sa_family)); + break; + } +} + + +static bool isWireless(const char *pszName) +{ + bool fWireless = false; + int iSock = socket(AF_INET, SOCK_DGRAM, 0); + if (iSock >= 0) + { + struct ieee80211req WReq; + uint8_t abData[32]; + + RT_ZERO(WReq); + strncpy(WReq.i_name, pszName, sizeof(WReq.i_name)); + WReq.i_type = IEEE80211_IOC_SSID; + WReq.i_val = -1; + WReq.i_data = abData; + WReq.i_len = sizeof(abData); + + fWireless = ioctl(iSock, SIOCG80211, &WReq) >= 0; + close(iSock); + } + + return fWireless; +} + +int NetIfList(std::list <ComObjPtr<HostNetworkInterface> > &list) +{ + int rc = VINF_SUCCESS; + size_t cbNeeded; + char *pBuf, *pNext; + int aiMib[6]; + unsigned short u16DefaultIface = 0; /* shut up gcc. */ + bool fDefaultIfaceExistent = true; + + /* Get the index of the interface associated with default route. */ + rc = getDefaultIfaceIndex(&u16DefaultIface, PF_INET); + if (RT_FAILURE(rc)) + { + fDefaultIfaceExistent = false; + rc = VINF_SUCCESS; + } + + aiMib[0] = CTL_NET; + aiMib[1] = PF_ROUTE; + aiMib[2] = 0; + aiMib[3] = 0; /* address family */ + aiMib[4] = NET_RT_IFLIST; + aiMib[5] = 0; + + if (sysctl(aiMib, 6, NULL, &cbNeeded, NULL, 0) < 0) + { + Log(("NetIfList: Failed to get estimate for list size (errno=%d).\n", errno)); + return RTErrConvertFromErrno(errno); + } + if ((pBuf = (char*)malloc(cbNeeded)) == NULL) + return VERR_NO_MEMORY; + if (sysctl(aiMib, 6, pBuf, &cbNeeded, NULL, 0) < 0) + { + free(pBuf); + Log(("NetIfList: Failed to retrieve interface table (errno=%d).\n", errno)); + return RTErrConvertFromErrno(errno); + } + + int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); + if (sock < 0) + { + free(pBuf); + Log(("NetIfList: socket() -> %d\n", errno)); + return RTErrConvertFromErrno(errno); + } + + char *pEnd = pBuf + cbNeeded; + for (pNext = pBuf; pNext < pEnd;) + { + struct if_msghdr *pIfMsg = (struct if_msghdr *)pNext; + + if (pIfMsg->ifm_type != RTM_IFINFO) + { + Log(("NetIfList: Got message %u while expecting %u.\n", + pIfMsg->ifm_type, RTM_IFINFO)); + rc = VERR_INTERNAL_ERROR; + break; + } + struct sockaddr_dl *pSdl = (struct sockaddr_dl *)(pIfMsg + 1); + + size_t cbNameLen = pSdl->sdl_nlen + 1; + PNETIFINFO pNew = (PNETIFINFO)RTMemAllocZ(RT_UOFFSETOF_DYN(NETIFINFO, szName[cbNameLen])); + if (!pNew) + { + rc = VERR_NO_MEMORY; + break; + } + memcpy(pNew->MACAddress.au8, LLADDR(pSdl), sizeof(pNew->MACAddress.au8)); + pNew->enmMediumType = NETIF_T_ETHERNET; + Assert(sizeof(pNew->szShortName) >= cbNameLen); + strlcpy(pNew->szShortName, pSdl->sdl_data, cbNameLen); + strlcpy(pNew->szName, pSdl->sdl_data, cbNameLen); + /* Generate UUID from name and MAC address. */ + RTUUID uuid; + RTUuidClear(&uuid); + memcpy(&uuid, pNew->szShortName, RT_MIN(cbNameLen, sizeof(uuid))); + uuid.Gen.u8ClockSeqHiAndReserved = (uuid.Gen.u8ClockSeqHiAndReserved & 0x3f) | 0x80; + uuid.Gen.u16TimeHiAndVersion = (uuid.Gen.u16TimeHiAndVersion & 0x0fff) | 0x4000; + memcpy(uuid.Gen.au8Node, pNew->MACAddress.au8, sizeof(uuid.Gen.au8Node)); + pNew->Uuid = uuid; + + pNext += pIfMsg->ifm_msglen; + while (pNext < pEnd) + { + struct ifa_msghdr *pIfAddrMsg = (struct ifa_msghdr *)pNext; + + if (pIfAddrMsg->ifam_type != RTM_NEWADDR) + break; + extractAddressesToNetInfo(pIfAddrMsg->ifam_addrs, + (char *)(pIfAddrMsg + 1), + pIfAddrMsg->ifam_msglen + (char *)pIfAddrMsg, + pNew); + pNext += pIfAddrMsg->ifam_msglen; + } + + if (pSdl->sdl_type == IFT_ETHER || pSdl->sdl_type == IFT_L2VLAN) + { + struct ifreq IfReq; + RTStrCopy(IfReq.ifr_name, sizeof(IfReq.ifr_name), pNew->szShortName); + if (ioctl(sock, SIOCGIFFLAGS, &IfReq) < 0) + { + Log(("NetIfList: ioctl(SIOCGIFFLAGS) -> %d\n", errno)); + pNew->enmStatus = NETIF_S_UNKNOWN; + } + else + pNew->enmStatus = (IfReq.ifr_flags & IFF_UP) ? NETIF_S_UP : NETIF_S_DOWN; + + HostNetworkInterfaceType_T enmType; + if (strncmp(pNew->szName, RT_STR_TUPLE("vboxnet"))) + enmType = HostNetworkInterfaceType_Bridged; + else + enmType = HostNetworkInterfaceType_HostOnly; + + pNew->fWireless = isWireless(pNew->szName); + + ComObjPtr<HostNetworkInterface> IfObj; + IfObj.createObject(); + if (SUCCEEDED(IfObj->init(Bstr(pNew->szName), enmType, pNew))) + { + /* Make sure the default interface gets to the beginning. */ + if ( fDefaultIfaceExistent + && pIfMsg->ifm_index == u16DefaultIface) + list.push_front(IfObj); + else + list.push_back(IfObj); + } + } + RTMemFree(pNew); + } + + close(sock); + free(pBuf); + return rc; + + +} + +int NetIfGetConfigByName(PNETIFINFO pInfo) +{ + int rc = VINF_SUCCESS; + size_t cbNeeded; + char *pBuf, *pNext; + int aiMib[6]; + + aiMib[0] = CTL_NET; + aiMib[1] = PF_ROUTE; + aiMib[2] = 0; + aiMib[3] = 0; /* address family */ + aiMib[4] = NET_RT_IFLIST; + aiMib[5] = 0; + + if (sysctl(aiMib, 6, NULL, &cbNeeded, NULL, 0) < 0) + { + Log(("NetIfList: Failed to get estimate for list size (errno=%d).\n", errno)); + return RTErrConvertFromErrno(errno); + } + if ((pBuf = (char*)malloc(cbNeeded)) == NULL) + return VERR_NO_MEMORY; + if (sysctl(aiMib, 6, pBuf, &cbNeeded, NULL, 0) < 0) + { + free(pBuf); + Log(("NetIfList: Failed to retrieve interface table (errno=%d).\n", errno)); + return RTErrConvertFromErrno(errno); + } + + int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); + if (sock < 0) + { + free(pBuf); + Log(("NetIfList: socket() -> %d\n", errno)); + return RTErrConvertFromErrno(errno); + } + + char *pEnd = pBuf + cbNeeded; + for (pNext = pBuf; pNext < pEnd;) + { + struct if_msghdr *pIfMsg = (struct if_msghdr *)pNext; + + if (pIfMsg->ifm_type != RTM_IFINFO) + { + Log(("NetIfList: Got message %u while expecting %u.\n", + pIfMsg->ifm_type, RTM_IFINFO)); + rc = VERR_INTERNAL_ERROR; + break; + } + struct sockaddr_dl *pSdl = (struct sockaddr_dl *)(pIfMsg + 1); + + bool fSkip = !!strcmp(pInfo->szShortName, pSdl->sdl_data); + + pNext += pIfMsg->ifm_msglen; + while (pNext < pEnd) + { + struct ifa_msghdr *pIfAddrMsg = (struct ifa_msghdr *)pNext; + + if (pIfAddrMsg->ifam_type != RTM_NEWADDR) + break; + if (!fSkip) + extractAddressesToNetInfo(pIfAddrMsg->ifam_addrs, + (char *)(pIfAddrMsg + 1), + pIfAddrMsg->ifam_msglen + (char *)pIfAddrMsg, + pInfo); + pNext += pIfAddrMsg->ifam_msglen; + } + + if (!fSkip && (pSdl->sdl_type == IFT_ETHER || pSdl->sdl_type == IFT_L2VLAN)) + { + size_t cbNameLen = pSdl->sdl_nlen + 1; + memcpy(pInfo->MACAddress.au8, LLADDR(pSdl), sizeof(pInfo->MACAddress.au8)); + pInfo->enmMediumType = NETIF_T_ETHERNET; + /* Generate UUID from name and MAC address. */ + RTUUID uuid; + RTUuidClear(&uuid); + memcpy(&uuid, pInfo->szShortName, RT_MIN(cbNameLen, sizeof(uuid))); + uuid.Gen.u8ClockSeqHiAndReserved = (uuid.Gen.u8ClockSeqHiAndReserved & 0x3f) | 0x80; + uuid.Gen.u16TimeHiAndVersion = (uuid.Gen.u16TimeHiAndVersion & 0x0fff) | 0x4000; + memcpy(uuid.Gen.au8Node, pInfo->MACAddress.au8, sizeof(uuid.Gen.au8Node)); + pInfo->Uuid = uuid; + + struct ifreq IfReq; + RTStrCopy(IfReq.ifr_name, sizeof(IfReq.ifr_name), pInfo->szShortName); + if (ioctl(sock, SIOCGIFFLAGS, &IfReq) < 0) + { + Log(("NetIfList: ioctl(SIOCGIFFLAGS) -> %d\n", errno)); + pInfo->enmStatus = NETIF_S_UNKNOWN; + } + else + pInfo->enmStatus = (IfReq.ifr_flags & IFF_UP) ? NETIF_S_UP : NETIF_S_DOWN; + + return VINF_SUCCESS; + } + } + close(sock); + free(pBuf); + 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*/) +{ + return VERR_NOT_IMPLEMENTED; +} |