tun_component.c revision 1.1.2.2
1 1.1.2.2 pgoyette /* $NetBSD: tun_component.c,v 1.1.2.2 2016/09/14 03:04:19 pgoyette Exp $ */ 2 1.1.2.2 pgoyette 3 1.1.2.2 pgoyette /* 4 1.1.2.2 pgoyette * Copyright (c) 2016 Internet Initiative Japan Inc. 5 1.1.2.2 pgoyette * All Rights Reserved. 6 1.1.2.2 pgoyette * 7 1.1.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 pgoyette * modification, are permitted provided that the following conditions 9 1.1.2.2 pgoyette * are met: 10 1.1.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 pgoyette * documentation and/or other materials provided with the distribution. 15 1.1.2.2 pgoyette * 16 1.1.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 17 1.1.2.2 pgoyette * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 1.1.2.2 pgoyette * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 1.1.2.2 pgoyette * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 1.1.2.2 pgoyette * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 1.1.2.2 pgoyette * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 1.1.2.2 pgoyette * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 1.1.2.2 pgoyette * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 1.1.2.2 pgoyette * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.1.2.2 pgoyette * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.1.2.2 pgoyette * SUCH DAMAGE. 27 1.1.2.2 pgoyette */ 28 1.1.2.2 pgoyette 29 1.1.2.2 pgoyette #include <sys/cdefs.h> 30 1.1.2.2 pgoyette __KERNEL_RCSID(0, "$NetBSD: tun_component.c,v 1.1.2.2 2016/09/14 03:04:19 pgoyette Exp $"); 31 1.1.2.2 pgoyette 32 1.1.2.2 pgoyette #include <sys/param.h> 33 1.1.2.2 pgoyette #include <sys/device.h> 34 1.1.2.2 pgoyette #include <sys/stat.h> 35 1.1.2.2 pgoyette 36 1.1.2.2 pgoyette #include <rump-sys/kern.h> 37 1.1.2.2 pgoyette #include <rump-sys/vfs.h> 38 1.1.2.2 pgoyette 39 1.1.2.2 pgoyette #include "ioconf.h" 40 1.1.2.2 pgoyette 41 1.1.2.2 pgoyette RUMP_COMPONENT(RUMP_COMPONENT_NET_IF) 42 1.1.2.2 pgoyette { 43 1.1.2.2 pgoyette extern const struct cdevsw tun_cdevsw; 44 1.1.2.2 pgoyette extern devmajor_t tun_bmajor, tun_cmajor; 45 1.1.2.2 pgoyette int error; 46 1.1.2.2 pgoyette 47 1.1.2.2 pgoyette error = devsw_attach("tun", NULL, &tun_bmajor, 48 1.1.2.2 pgoyette &tun_cdevsw, &tun_cmajor); 49 1.1.2.2 pgoyette if (error != 0) 50 1.1.2.2 pgoyette panic("tun devsw attach failed: %d", error); 51 1.1.2.2 pgoyette 52 1.1.2.2 pgoyette error = rump_vfs_makeonedevnode(S_IFCHR, "/dev/tun", tun_cmajor, 53 1.1.2.2 pgoyette 0xfffff); 54 1.1.2.2 pgoyette if (error != 0) 55 1.1.2.2 pgoyette panic("cannot create tun device node: %d", error); 56 1.1.2.2 pgoyette 57 1.1.2.2 pgoyette error = rump_vfs_makedevnodes(S_IFCHR, "/dev/tun", '0', tun_cmajor, 58 1.1.2.2 pgoyette 0, 4); 59 1.1.2.2 pgoyette if (error != 0) 60 1.1.2.2 pgoyette panic("cannot create tun[0-4] device node: %d", error); 61 1.1.2.2 pgoyette 62 1.1.2.2 pgoyette devsw_detach(NULL, &tun_cdevsw); 63 1.1.2.2 pgoyette } 64
Indexes created Fri Sep 26 20:09:58 GMT 2025