tap_component.c revision 1.1.2.2
1 1.1.2.2 skrll /* $NetBSD: tap_component.c,v 1.1.2.2 2015/06/06 14:40:30 skrll Exp $ */ 2 1.1.2.2 skrll 3 1.1.2.2 skrll /* 4 1.1.2.2 skrll * Copyright (c) 2015 Wei Liu. All Rights Reserved. 5 1.1.2.2 skrll * 6 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 7 1.1.2.2 skrll * modification, are permitted provided that the following conditions 8 1.1.2.2 skrll * are met: 9 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 10 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer. 11 1.1.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 12 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer in the 13 1.1.2.2 skrll * documentation and/or other materials provided with the distribution. 14 1.1.2.2 skrll * 15 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 16 1.1.2.2 skrll * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 1.1.2.2 skrll * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 1.1.2.2 skrll * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 1.1.2.2 skrll * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 1.1.2.2 skrll * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 1.1.2.2 skrll * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 1.1.2.2 skrll * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 1.1.2.2 skrll * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 1.1.2.2 skrll * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 1.1.2.2 skrll * SUCH DAMAGE. 26 1.1.2.2 skrll */ 27 1.1.2.2 skrll 28 1.1.2.2 skrll #include <sys/cdefs.h> 29 1.1.2.2 skrll __KERNEL_RCSID(0, "$NetBSD: tap_component.c,v 1.1.2.2 2015/06/06 14:40:30 skrll Exp $"); 30 1.1.2.2 skrll 31 1.1.2.2 skrll #include <sys/param.h> 32 1.1.2.2 skrll #include <sys/device.h> 33 1.1.2.2 skrll #include <sys/stat.h> 34 1.1.2.2 skrll 35 1.1.2.2 skrll #include "rump_private.h" 36 1.1.2.2 skrll #include "rump_net_private.h" 37 1.1.2.2 skrll #include "rump_vfs_private.h" 38 1.1.2.2 skrll 39 1.1.2.2 skrll CFDRIVER_DECL(tap, DV_IFNET, NULL); 40 1.1.2.2 skrll 41 1.1.2.2 skrll void tapattach(int); 42 1.1.2.2 skrll 43 1.1.2.2 skrll RUMP_COMPONENT(RUMP_COMPONENT_NET_IF) 44 1.1.2.2 skrll { 45 1.1.2.2 skrll extern const struct cdevsw tap_cdevsw; 46 1.1.2.2 skrll devmajor_t bmaj, cmaj; 47 1.1.2.2 skrll int error; 48 1.1.2.2 skrll 49 1.1.2.2 skrll config_cfdriver_attach(&tap_cd); 50 1.1.2.2 skrll tapattach(0); 51 1.1.2.2 skrll 52 1.1.2.2 skrll bmaj = cmaj = NODEVMAJOR; 53 1.1.2.2 skrll error = devsw_attach("tap", NULL, &bmaj, &tap_cdevsw, &cmaj); 54 1.1.2.2 skrll if (error != 0) 55 1.1.2.2 skrll panic("tap devsw attach failed: %d", error); 56 1.1.2.2 skrll 57 1.1.2.2 skrll error = rump_vfs_makeonedevnode(S_IFCHR, "/dev/tap", cmaj, 0xfffff); 58 1.1.2.2 skrll if (error != 0) 59 1.1.2.2 skrll panic("cannot create tap device node: %d", error); 60 1.1.2.2 skrll 61 1.1.2.2 skrll error = rump_vfs_makedevnodes(S_IFCHR, "/dev/tap", '0', cmaj, 0, 4); 62 1.1.2.2 skrll if (error != 0) 63 1.1.2.2 skrll panic("cannot create tap[0-4] device node: %d", error); 64 1.1.2.2 skrll } 65
Indexes created Fri Sep 26 08:10:20 GMT 2025