diff options
Diffstat (limited to 'src/VBox/HostDrivers/VBoxNetAdp/freebsd/VBoxNetAdp-freebsd.c')
| -rw-r--r-- | src/VBox/HostDrivers/VBoxNetAdp/freebsd/VBoxNetAdp-freebsd.c | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/src/VBox/HostDrivers/VBoxNetAdp/freebsd/VBoxNetAdp-freebsd.c b/src/VBox/HostDrivers/VBoxNetAdp/freebsd/VBoxNetAdp-freebsd.c new file mode 100644 index 00000000..40433e49 --- /dev/null +++ b/src/VBox/HostDrivers/VBoxNetAdp/freebsd/VBoxNetAdp-freebsd.c @@ -0,0 +1,335 @@ +/* $Id: VBoxNetAdp-freebsd.c $ */ +/** @file + * VBoxNetAdp - Virtual Network Adapter Driver (Host), FreeBSD Specific Code. + */ + +/*- + * Copyright (c) 2009 Fredrik Lindberg <fli@shapeshifter.se> + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <sys/param.h> +#undef PVM +#include <sys/types.h> +#include <sys/module.h> +#include <sys/systm.h> +#include <sys/errno.h> +#include <sys/kernel.h> +#include <sys/fcntl.h> +#include <sys/conf.h> +#include <sys/uio.h> +#include <sys/socket.h> +#include <sys/sockio.h> + +#include <net/if.h> +#include <net/if_var.h> +#include <net/route.h> +#include <net/if_dl.h> +#include <net/if_media.h> +#include <net/if_types.h> +#include <net/ethernet.h> +#include <net/bpf.h> + +#define LOG_GROUP LOG_GROUP_NET_ADP_DRV +#include <VBox/version.h> +#include <iprt/errcore.h> +#include <VBox/log.h> +#include <iprt/initterm.h> +#include <iprt/string.h> +#include <iprt/spinlock.h> +#include <iprt/process.h> +#include <iprt/assert.h> +#include <iprt/uuid.h> +#include <iprt/alloc.h> +#include <iprt/errcore.h> + +#define VBOXNETADP_OS_SPECFIC 1 +#include "../VBoxNetAdpInternal.h" + +#if defined(__FreeBSD_version) && __FreeBSD_version >= 800500 +# include <sys/jail.h> +# include <net/vnet.h> + +# define VBOXCURVNET_SET(arg) CURVNET_SET_QUIET(arg) +# define VBOXCURVNET_SET_FROM_UCRED() VBOXCURVNET_SET(CRED_TO_VNET(curthread->td_ucred)) +# define VBOXCURVNET_RESTORE() CURVNET_RESTORE() + +#else /* !defined(__FreeBSD_version) || __FreeBSD_version < 800500 */ + +# define VBOXCURVNET_SET(arg) +# define VBOXCURVNET_SET_FROM_UCRED() +# define VBOXCURVNET_RESTORE() + +#endif /* !defined(__FreeBSD_version) || __FreeBSD_version < 800500 */ + +static int VBoxNetAdpFreeBSDCtrlioctl(struct cdev *, u_long, caddr_t, int flags, + struct thread *); +static struct cdevsw vboxnetadp_cdevsw = +{ + .d_version = D_VERSION, + .d_ioctl = VBoxNetAdpFreeBSDCtrlioctl, + .d_read = (d_read_t *)nullop, + .d_write = (d_write_t *)nullop, + .d_name = VBOXNETADP_CTL_DEV_NAME, +}; + +static struct cdev *VBoxNetAdpFreeBSDcdev; + +static int VBoxNetAdpFreeBSDModuleEvent(struct module *, int, void *); +static moduledata_t g_VBoxNetAdpFreeBSDModule = { + "vboxnetadp", + VBoxNetAdpFreeBSDModuleEvent, + NULL +}; + +/** Declare the module as a pseudo device. */ +DECLARE_MODULE(vboxnetadp, g_VBoxNetAdpFreeBSDModule, SI_SUB_PSEUDO, SI_ORDER_ANY); +MODULE_VERSION(vboxnetadp, 1); +MODULE_DEPEND(vboxnetadp, vboxdrv, 1, 1, 1); +MODULE_DEPEND(vboxnetadp, vboxnetflt, 1, 1, 1); + +/** + * Module event handler + */ +static int +VBoxNetAdpFreeBSDModuleEvent(struct module *pMod, int enmEventType, void *pvArg) +{ + int rc = 0; + + Log(("VBoxNetAdpFreeBSDModuleEvent\n")); + + switch (enmEventType) + { + case MOD_LOAD: + rc = RTR0Init(0); + if (RT_FAILURE(rc)) + { + Log(("RTR0Init failed %d\n", rc)); + return RTErrConvertToErrno(rc); + } + rc = vboxNetAdpInit(); + if (RT_FAILURE(rc)) + { + RTR0Term(); + Log(("vboxNetAdpInit failed %d\n", rc)); + return RTErrConvertToErrno(rc); + } + /* Create dev node */ + VBoxNetAdpFreeBSDcdev = make_dev(&vboxnetadp_cdevsw, 0, + UID_ROOT, GID_WHEEL, 0600, VBOXNETADP_CTL_DEV_NAME); + + break; + + case MOD_UNLOAD: + vboxNetAdpShutdown(); + destroy_dev(VBoxNetAdpFreeBSDcdev); + RTR0Term(); + break; + case MOD_SHUTDOWN: + case MOD_QUIESCE: + default: + return EOPNOTSUPP; + } + + if (RT_SUCCESS(rc)) + return 0; + return RTErrConvertToErrno(rc); +} + +/** + * Device I/O Control entry point. + */ +static int +VBoxNetAdpFreeBSDCtrlioctl(struct cdev *dev, u_long iCmd, caddr_t data, int flags, struct thread *td) +{ + PVBOXNETADP pAdp; + PVBOXNETADPREQ pReq = (PVBOXNETADPREQ)data; + struct ifnet *ifp; + int rc; + + switch (iCmd) + { + case VBOXNETADP_CTL_ADD: + if ( !(iCmd & IOC_INOUT) /* paranoia*/ + || IOCPARM_LEN(iCmd) < sizeof(*pReq)) + return EINVAL; + + rc = vboxNetAdpCreate(&pAdp, + pReq->szName[0] && RTStrEnd(pReq->szName, RT_MIN(IOCPARM_LEN(iCmd), sizeof(pReq->szName))) ? + pReq->szName : NULL); + if (RT_FAILURE(rc)) + return EINVAL; + + strncpy(pReq->szName, pAdp->szName, sizeof(pReq->szName) - 1); + pReq->szName[sizeof(pReq->szName) - 1] = '\0'; + break; + + case VBOXNETADP_CTL_REMOVE: + if (!RTStrEnd(pReq->szName, RT_MIN(sizeof(pReq->szName), IOCPARM_LEN(iCmd)))) + return EINVAL; + + pAdp = vboxNetAdpFindByName(pReq->szName); + if (!pAdp) + return EINVAL; + + rc = vboxNetAdpDestroy(pAdp); + if (RT_FAILURE(rc)) + return EINVAL; + + break; + + default: + return EINVAL; + } + return 0; +} + +/** + * Initialize device, just set the running flag. + */ +static void VBoxNetAdpFreeBSDNetinit(void *priv) +{ + PVBOXNETADP pThis = priv; + struct ifnet *ifp = pThis->u.s.ifp; + + ifp->if_drv_flags |= IFF_DRV_RUNNING; +} + +/** + * Transmit packets. + * netflt has already done everything for us so we just hand the + * packets to BPF and increment the packet stats. + */ +static void VBoxNetAdpFreeBSDNetstart(struct ifnet *ifp) +{ + PVBOXNETADP pThis = ifp->if_softc; + struct mbuf *m; + + if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != IFF_DRV_RUNNING) + return; + + ifp->if_drv_flags |= IFF_DRV_OACTIVE; + while (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) + { + ifp->if_opackets++; + IFQ_DRV_DEQUEUE(&ifp->if_snd, m); + BPF_MTAP(ifp, m); + m_freem(m); + } + ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; +} + +/** + * Interface ioctl handling + */ +static int VBoxNetAdpFreeBSDNetioctl(struct ifnet *ifp, u_long cmd, caddr_t data) +{ + int error = 0; + + switch (cmd) + { + case SIOCSIFFLAGS: + if (ifp->if_flags & IFF_UP) + { + if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) + ifp->if_init(ifp->if_softc); + } + else + { + if (ifp->if_drv_flags & IFF_DRV_RUNNING) + ifp->if_drv_flags &= ~IFF_DRV_RUNNING; + } + break; + case SIOCGIFMEDIA: + { + struct ifmediareq *ifmr; + int count; + + ifmr = (struct ifmediareq *)data; + count = ifmr->ifm_count; + ifmr->ifm_count = 1; + ifmr->ifm_status = IFM_AVALID; + ifmr->ifm_active = IFM_ETHER; + ifmr->ifm_status |= IFM_ACTIVE; + ifmr->ifm_current = ifmr->ifm_active; + if (count >= 1) + { + int media = IFM_ETHER; + error = copyout(&media, ifmr->ifm_ulist, sizeof(int)); + } + break; + } + default: + return ether_ioctl(ifp, cmd, data); + } + return error; +} + +int vboxNetAdpOsInit(PVBOXNETADP pThis) +{ + pThis->u.s.ifp = NULL; + return VINF_SUCCESS;; +} + +int vboxNetAdpOsCreate(PVBOXNETADP pThis, PCRTMAC pMac) +{ + struct ifnet *ifp; + + VBOXCURVNET_SET_FROM_UCRED(); + ifp = if_alloc(IFT_ETHER); + if (ifp == NULL) + return VERR_NO_MEMORY; + + if_initname(ifp, VBOXNETADP_NAME, pThis->iUnit); + ifp->if_softc = pThis; + ifp->if_mtu = ETHERMTU; + ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; + ifp->if_ioctl = VBoxNetAdpFreeBSDNetioctl; + ifp->if_start = VBoxNetAdpFreeBSDNetstart; + ifp->if_init = VBoxNetAdpFreeBSDNetinit; + IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); + ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; + IFQ_SET_READY(&ifp->if_snd); + ether_ifattach(ifp, (void *)pMac); + ifp->if_baudrate = 0; + + strncpy(pThis->szName, ifp->if_xname, VBOXNETADP_MAX_NAME_LEN); + pThis->u.s.ifp = ifp; + VBOXCURVNET_RESTORE(); + return 0; +} + +void vboxNetAdpOsDestroy(PVBOXNETADP pThis) +{ + struct ifnet *ifp; + + ifp = pThis->u.s.ifp; + VBOXCURVNET_SET(ifp->if_vnet); + ether_ifdetach(ifp); + if_free(ifp); + VBOXCURVNET_RESTORE(); +} |