errno_t
utun_register_control(void)
{
struct kern_ctl_reg kern_ctl;
errno_t result = 0;
/* Create a tag to allocate memory */
utun_malloc_tag = OSMalloc_Tagalloc(UTUN_CONTROL_NAME, OSMT_DEFAULT);
/* Find a unique value for our interface family */
result = mbuf_tag_id_find(UTUN_CONTROL_NAME, &utun_family);
if (result != 0) {
printf("utun_register_control - mbuf_tag_id_find_internal failed: %d\n", result);
return result;
}
bzero(&kern_ctl, sizeof(kern_ctl));
strlcpy(kern_ctl.ctl_name, UTUN_CONTROL_NAME, sizeof(kern_ctl.ctl_name));
kern_ctl.ctl_name[sizeof(kern_ctl.ctl_name) - 1] = 0;
kern_ctl.ctl_flags = CTL_FLAG_PRIVILEGED | CTL_FLAG_REG_EXTENDED; /* Require root */
kern_ctl.ctl_sendsize = 512 * 1024;
kern_ctl.ctl_recvsize = 512 * 1024;
kern_ctl.ctl_connect = utun_ctl_connect;
kern_ctl.ctl_disconnect = utun_ctl_disconnect;
kern_ctl.ctl_send = utun_ctl_send;
kern_ctl.ctl_setopt = utun_ctl_setopt;
kern_ctl.ctl_getopt = utun_ctl_getopt;
kern_ctl.ctl_rcvd = utun_ctl_rcvd;
utun_ctl_init_crypto();
result = ctl_register(&kern_ctl, &utun_kctlref);
if (result != 0) {
printf("utun_register_control - ctl_register failed: %d\n", result);
return result;
}
/* Register the protocol plumbers */
if ((result = proto_register_plumber(PF_INET, utun_family,
utun_attach_proto, NULL)) != 0) {
printf("utun_register_control - proto_register_plumber(PF_INET, %d) failed: %d\n",
utun_family, result);
ctl_deregister(utun_kctlref);
return result;
}
/* Register the protocol plumbers */
if ((result = proto_register_plumber(PF_INET6, utun_family,
utun_attach_proto, NULL)) != 0) {
proto_unregister_plumber(PF_INET, utun_family);
ctl_deregister(utun_kctlref);
printf("utun_register_control - proto_register_plumber(PF_INET6, %d) failed: %d\n",
utun_family, result);
return result;
}
return 0;
}
/**
* Start the kernel module.
*/
static kern_return_t VBoxNetFltDarwinStart(struct kmod_info *pKModInfo, void *pvData)
{
int rc;
/*
* Initialize IPRT and find our module tag id.
* (IPRT is shared with VBoxDrv, it creates the loggers.)
*/
rc = RTR0Init(0);
if (RT_SUCCESS(rc))
{
Log(("VBoxNetFltDarwinStart\n"));
errno_t err = mbuf_tag_id_find("org.VirtualBox.kext.VBoxFltDrv", &g_idTag);
if (!err)
{
/*
* Initialize the globals and connect to the support driver.
*
* This will call back vboxNetFltOsOpenSupDrv (and maybe vboxNetFltOsCloseSupDrv)
* for establishing the connect to the support driver.
*/
memset(&g_VBoxNetFltGlobals, 0, sizeof(g_VBoxNetFltGlobals));
rc = vboxNetFltInitGlobalsAndIdc(&g_VBoxNetFltGlobals);
if (RT_SUCCESS(rc))
{
LogRel(("VBoxFltDrv: version " VBOX_VERSION_STRING " r%d\n", VBOX_SVN_REV));
return KMOD_RETURN_SUCCESS;
}
LogRel(("VBoxFltDrv: failed to initialize device extension (rc=%d)\n", rc));
}
else
LogRel(("VBoxFltDrv: mbuf_tag_id_find failed, err=%d\n", err));
RTR0Term();
}
else
printf("VBoxFltDrv: failed to initialize IPRT (rc=%d)\n", rc);
memset(&g_VBoxNetFltGlobals, 0, sizeof(g_VBoxNetFltGlobals));
return KMOD_RETURN_FAILURE;
}
