| 1 | /* $NetBSD: if_module.h,v 1.1 2016/08/07 17:38:34 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2016 The NetBSD Foundation, Inc. |
| 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 17 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 18 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 26 | * POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #ifdef _MODULE |
| 30 | # define IF_MODULE_CFDRIVER_DECL(name) CFDRIVER_DECL(name, DV_IFNET, NULL) |
| 31 | # define IF_MODULE_CFDRIVER_ATTACH(name) \ |
| 32 | error = config_cfdriver_attach(& name ## _cd); \ |
| 33 | if (error) { \ |
| 34 | aprint_error("%s: unable to register cfdriver for" \ |
| 35 | "%s, error %d\n", __func__, name ## _cd.cd_name,\ |
| 36 | error); \ |
| 37 | break; \ |
| 38 | } |
| 39 | # define IF_MODULE_CFDRIVER_DETACH(name) \ |
| 40 | /* Remove device from autoconf database */ \ |
| 41 | error = config_cfdriver_detach(&name ## _cd); \ |
| 42 | if (error) { \ |
| 43 | aprint_error("%s: failed to detach %s cfdriver, " \ |
| 44 | "error %d\n", __func__, name ## _cd.cd_name, \ |
| 45 | error); \ |
| 46 | break; \ |
| 47 | } |
| 48 | #else |
| 49 | # define IF_MODULE_CFDRIVER_DECL(name) |
| 50 | # define IF_MODULE_CFDRIVER_ATTACH(name) |
| 51 | # define IF_MODULE_CFDRIVER_DETACH(name) |
| 52 | #endif |
| 53 | |
| 54 | #define IF_MODULE(class, name, dep) \ |
| 55 | MODULE(class, if_ ## name, dep); \ |
| 56 | IF_MODULE_CFDRIVER_DECL(name); \ |
| 57 | static int \ |
| 58 | if_ ## name ## _modcmd(modcmd_t cmd, void *arg) \ |
| 59 | { \ |
| 60 | int error = 0; \ |
| 61 | \ |
| 62 | switch (cmd) { \ |
| 63 | case MODULE_CMD_INIT: \ |
| 64 | IF_MODULE_CFDRIVER_ATTACH(name) \ |
| 65 | /* Init the unit list/line discipline stuff */ \ |
| 66 | name ## init(); \ |
| 67 | break; \ |
| 68 | \ |
| 69 | case MODULE_CMD_FINI: \ |
| 70 | /* \ |
| 71 | * Make sure it's ok to detach - no units left, \ |
| 72 | * and line discipline is removed \ |
| 73 | */ \ |
| 74 | error = name ## detach(); \ |
| 75 | if (error != 0) \ |
| 76 | break; \ |
| 77 | IF_MODULE_CFDRIVER_DETACH(name) \ |
| 78 | break; \ |
| 79 | \ |
| 80 | case MODULE_CMD_STAT: \ |
| 81 | error = ENOTTY; \ |
| 82 | break; \ |
| 83 | default: \ |
| 84 | error = ENOTTY; \ |
| 85 | break; \ |
| 86 | } \ |
| 87 | \ |
| 88 | return error; \ |
| 89 | } |
| 90 | |