2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2009 Robert N. M. Watson
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
30 * When an interface has been detached but not yet freed, we set the various
31 * ifnet function pointers to "ifdead" versions. This prevents unexpected
32 * calls from the network stack into the device driver after if_detach() has
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
39 #include <sys/param.h>
41 #include <sys/socket.h>
44 #include <net/if_var.h>
47 ifdead_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *sa,
56 ifdead_input(struct ifnet *ifp, struct mbuf *m)
63 ifdead_start(struct ifnet *ifp)
69 ifdead_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
76 ifdead_resolvemulti(struct ifnet *ifp, struct sockaddr **llsa,
85 ifdead_qflush(struct ifnet *ifp)
91 ifdead_transmit(struct ifnet *ifp, struct mbuf *m)
99 ifdead_get_counter(struct ifnet *ifp, ift_counter cnt)
106 ifdead_snd_tag_alloc(struct ifnet *ifp, union if_snd_tag_alloc_params *params,
107 struct m_snd_tag **ppmt)
113 ifdead_snd_tag_modify(struct m_snd_tag *pmt, union if_snd_tag_modify_params *params)
119 ifdead_snd_tag_query(struct m_snd_tag *pmt, union if_snd_tag_query_params *params)
125 ifdead_snd_tag_free(struct m_snd_tag *pmt)
130 ifdead_ratelimit_query(struct ifnet *ifp __unused,
131 struct if_ratelimit_query_results *q)
134 * This guy does not support
135 * this interface. Not sure
136 * why we would specify a
137 * flag on the interface
140 q->rate_table = NULL;
141 q->flags = RT_NOSUPPORT;
143 q->number_of_rates = 0;
147 if_dead(struct ifnet *ifp)
150 ifp->if_output = ifdead_output;
151 ifp->if_input = ifdead_input;
152 ifp->if_start = ifdead_start;
153 ifp->if_ioctl = ifdead_ioctl;
154 ifp->if_resolvemulti = ifdead_resolvemulti;
155 ifp->if_qflush = ifdead_qflush;
156 ifp->if_transmit = ifdead_transmit;
157 ifp->if_get_counter = ifdead_get_counter;
158 ifp->if_snd_tag_alloc = ifdead_snd_tag_alloc;
159 ifp->if_snd_tag_modify = ifdead_snd_tag_modify;
160 ifp->if_snd_tag_query = ifdead_snd_tag_query;
161 ifp->if_snd_tag_free = ifdead_snd_tag_free;
162 ifp->if_ratelimit_query = ifdead_ratelimit_query;