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/*-
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2013-2017 Mellanox Technologies, Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LINUX_INETDEVICE_H_
#define _LINUX_INETDEVICE_H_
#include <linux/netdevice.h>
static inline struct net_device *
ip_dev_find(struct vnet *vnet, uint32_t addr)
{
struct sockaddr_in sin;
struct epoch_tracker et;
struct ifaddr *ifa;
struct ifnet *ifp;
memset(&sin, 0, sizeof(sin));
sin.sin_addr.s_addr = addr;
sin.sin_len = sizeof(sin);
sin.sin_family = AF_INET;
NET_EPOCH_ENTER(et);
CURVNET_SET_QUIET(vnet);
ifa = ifa_ifwithaddr((struct sockaddr *)&sin);
CURVNET_RESTORE();
if (ifa) {
ifp = ifa->ifa_ifp;
if_ref(ifp);
} else {
ifp = NULL;
}
NET_EPOCH_EXIT(et);
return (ifp);
}
static inline struct net_device *
ip6_dev_find(struct vnet *vnet, struct in6_addr addr, uint16_t scope_id)
{
struct sockaddr_in6 sin6;
struct epoch_tracker et;
struct ifaddr *ifa;
struct ifnet *ifp;
memset(&sin6, 0, sizeof(sin6));
sin6.sin6_addr = addr;
sin6.sin6_len = sizeof(sin6);
sin6.sin6_family = AF_INET6;
if (IN6_IS_SCOPE_LINKLOCAL(&addr) ||
IN6_IS_ADDR_MC_INTFACELOCAL(&addr)) {
/* embed the IPv6 scope ID */
sin6.sin6_addr.s6_addr16[1] = htons(scope_id);
}
NET_EPOCH_ENTER(et);
CURVNET_SET_QUIET(vnet);
ifa = ifa_ifwithaddr((struct sockaddr *)&sin6);
CURVNET_RESTORE();
if (ifa != NULL) {
ifp = ifa->ifa_ifp;
if_ref(ifp);
} else {
ifp = NULL;
}
NET_EPOCH_EXIT(et);
return (ifp);
}
#endif /* _LINUX_INETDEVICE_H_ */
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