1 /* $NetBSD: if_agrsoftc.c,v 1.4 2009/03/15 21:23:31 cegger Exp $ */ 2 3 /*- 4 * Copyright (c)2005 YAMAMOTO Takashi, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: if_agrsoftc.c,v 1.4 2009/03/15 21:23:31 cegger Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/callout.h> 34 #include <sys/malloc.h> 35 36 #include <net/if.h> 37 #include <net/if_ether.h> 38 39 #include <net/agr/if_agrvar_impl.h> 40 41 /* 42 * these functions are isolated from if_agr.c to avoid inclusion of if_ether.h. 43 */ 44 45 struct agr_softc * 46 agr_alloc_softc(void) 47 { 48 struct agr_softc *sc; 49 union { 50 struct ifnet u_if; 51 struct ethercom u_ec; 52 } *u; 53 54 /* 55 * as we don't know our if_type yet.. 56 */ 57 58 sc = malloc(sizeof(*sc) - sizeof(sc->sc_if) + sizeof(*u), 59 M_DEVBUF, M_WAITOK | M_ZERO); 60 61 return sc; 62 } 63 64 void 65 agr_free_softc(struct agr_softc *sc) 66 { 67 68 free(sc, M_DEVBUF); 69 } 70