1 /*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 #ifndef _LINUX_NETDEVICE_H_ 32 #define _LINUX_NETDEVICE_H_ 33 34 #include <linux/types.h> 35 36 #include <sys/socket.h> 37 38 #include <net/if_types.h> 39 #include <net/if.h> 40 #include <net/if_var.h> 41 #include <net/if_dl.h> 42 43 #include <linux/completion.h> 44 #include <linux/device.h> 45 #include <linux/workqueue.h> 46 #include <linux/net.h> 47 #include <linux/notifier.h> 48 49 struct net { 50 }; 51 52 extern struct net init_net; 53 54 #define MAX_ADDR_LEN 20 55 56 #define net_device ifnet 57 58 #define dev_get_by_index(n, idx) ifnet_byindex_ref((idx)) 59 #define dev_hold(d) if_ref((d)) 60 #define dev_put(d) if_rele((d)) 61 62 #define netif_running(dev) !!((dev)->if_drv_flags & IFF_DRV_RUNNING) 63 #define netif_oper_up(dev) !!((dev)->if_flags & IFF_UP) 64 #define netif_carrier_ok(dev) netif_running(dev) 65 66 static inline void * 67 netdev_priv(const struct net_device *dev) 68 { 69 return (dev->if_softc); 70 } 71 72 static inline void 73 _handle_ifnet_link_event(void *arg, struct ifnet *ifp, int linkstate) 74 { 75 struct notifier_block *nb; 76 77 nb = arg; 78 if (linkstate == LINK_STATE_UP) 79 nb->notifier_call(nb, NETDEV_UP, ifp); 80 else 81 nb->notifier_call(nb, NETDEV_DOWN, ifp); 82 } 83 84 static inline void 85 _handle_ifnet_arrival_event(void *arg, struct ifnet *ifp) 86 { 87 struct notifier_block *nb; 88 89 nb = arg; 90 nb->notifier_call(nb, NETDEV_REGISTER, ifp); 91 } 92 93 static inline void 94 _handle_ifnet_departure_event(void *arg, struct ifnet *ifp) 95 { 96 struct notifier_block *nb; 97 98 nb = arg; 99 nb->notifier_call(nb, NETDEV_UNREGISTER, ifp); 100 } 101 102 static inline void 103 _handle_iflladdr_event(void *arg, struct ifnet *ifp) 104 { 105 struct notifier_block *nb; 106 107 nb = arg; 108 nb->notifier_call(nb, NETDEV_CHANGEADDR, ifp); 109 } 110 111 static inline void 112 _handle_ifaddr_event(void *arg, struct ifnet *ifp) 113 { 114 struct notifier_block *nb; 115 116 nb = arg; 117 nb->notifier_call(nb, NETDEV_CHANGEIFADDR, ifp); 118 } 119 120 static inline int 121 register_netdevice_notifier(struct notifier_block *nb) 122 { 123 124 nb->tags[NETDEV_UP] = EVENTHANDLER_REGISTER( 125 ifnet_link_event, _handle_ifnet_link_event, nb, 0); 126 nb->tags[NETDEV_REGISTER] = EVENTHANDLER_REGISTER( 127 ifnet_arrival_event, _handle_ifnet_arrival_event, nb, 0); 128 nb->tags[NETDEV_UNREGISTER] = EVENTHANDLER_REGISTER( 129 ifnet_departure_event, _handle_ifnet_departure_event, nb, 0); 130 nb->tags[NETDEV_CHANGEADDR] = EVENTHANDLER_REGISTER( 131 iflladdr_event, _handle_iflladdr_event, nb, 0); 132 133 return (0); 134 } 135 136 static inline int 137 register_inetaddr_notifier(struct notifier_block *nb) 138 { 139 140 nb->tags[NETDEV_CHANGEIFADDR] = EVENTHANDLER_REGISTER( 141 ifaddr_event, _handle_ifaddr_event, nb, 0); 142 return (0); 143 } 144 145 static inline int 146 unregister_netdevice_notifier(struct notifier_block *nb) 147 { 148 149 EVENTHANDLER_DEREGISTER(ifnet_link_event, nb->tags[NETDEV_UP]); 150 EVENTHANDLER_DEREGISTER(ifnet_arrival_event, nb->tags[NETDEV_REGISTER]); 151 EVENTHANDLER_DEREGISTER(ifnet_departure_event, 152 nb->tags[NETDEV_UNREGISTER]); 153 EVENTHANDLER_DEREGISTER(iflladdr_event, 154 nb->tags[NETDEV_CHANGEADDR]); 155 156 return (0); 157 } 158 159 static inline int 160 unregister_inetaddr_notifier(struct notifier_block *nb) 161 { 162 163 EVENTHANDLER_DEREGISTER(ifaddr_event, 164 nb->tags[NETDEV_CHANGEIFADDR]); 165 166 return (0); 167 } 168 169 170 #define rtnl_lock() 171 #define rtnl_unlock() 172 173 static inline int 174 dev_mc_delete(struct net_device *dev, void *addr, int alen, int all) 175 { 176 struct sockaddr_dl sdl; 177 178 if (alen > sizeof(sdl.sdl_data)) 179 return (-EINVAL); 180 memset(&sdl, 0, sizeof(sdl)); 181 sdl.sdl_len = sizeof(sdl); 182 sdl.sdl_family = AF_LINK; 183 sdl.sdl_alen = alen; 184 memcpy(&sdl.sdl_data, addr, alen); 185 186 return -if_delmulti(dev, (struct sockaddr *)&sdl); 187 } 188 189 static inline int 190 dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly) 191 { 192 struct sockaddr_dl sdl; 193 194 if (alen > sizeof(sdl.sdl_data)) 195 return (-EINVAL); 196 memset(&sdl, 0, sizeof(sdl)); 197 sdl.sdl_len = sizeof(sdl); 198 sdl.sdl_family = AF_LINK; 199 sdl.sdl_alen = alen; 200 memcpy(&sdl.sdl_data, addr, alen); 201 202 return -if_addmulti(dev, (struct sockaddr *)&sdl, NULL); 203 } 204 205 #endif /* _LINUX_NETDEVICE_H_ */ 206