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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/ofed/include/rdma/ib_addr_freebsd.h
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/*-

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 * Copyright (c) 2010 Isilon Systems, Inc.

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 * Copyright (c) 2010 iX Systems, Inc.

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 * Copyright (c) 2010 Panasas, Inc.

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 * Copyright (c) 2013-2017 Mellanox Technologies, Ltd.

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice unmodified, this list of conditions, and the following

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 *    disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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 */

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#ifndef _RDMA_IB_ADDR_FREEBSD_H

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#define	_RDMA_IB_ADDR_FREEBSD_H

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#ifdef INET

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static inline if_t

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ip_ifp_find(struct vnet *vnet, uint32_t addr)

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{

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	struct sockaddr_in sin;

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	struct epoch_tracker et;

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	struct ifaddr *ifa;

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	if_t ifp;

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	memset(&sin, 0, sizeof(sin));

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	sin.sin_addr.s_addr = addr;

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	sin.sin_len = sizeof(sin);

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	sin.sin_family = AF_INET;

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	NET_EPOCH_ENTER(et);

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	CURVNET_SET_QUIET(vnet);

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	ifa = ifa_ifwithaddr((struct sockaddr *)&sin);

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	CURVNET_RESTORE();

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	if (ifa) {

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		ifp = ifa->ifa_ifp;

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		if_ref(ifp);

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	} else {

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		ifp = NULL;

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	}

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	NET_EPOCH_EXIT(et);

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	return (ifp);

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}

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#endif

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#ifdef INET6

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static inline if_t

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ip6_ifp_find(struct vnet *vnet, struct in6_addr addr, uint16_t scope_id)

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{

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	struct sockaddr_in6 sin6;

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	struct epoch_tracker et;

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	struct ifaddr *ifa;

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	if_t ifp;

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	memset(&sin6, 0, sizeof(sin6));

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	sin6.sin6_addr = addr;

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	sin6.sin6_len = sizeof(sin6);

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	sin6.sin6_family = AF_INET6;

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	if (IN6_IS_SCOPE_LINKLOCAL(&addr) ||

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	    IN6_IS_ADDR_MC_INTFACELOCAL(&addr)) {

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		/* embed the IPv6 scope ID */

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		sin6.sin6_addr.s6_addr16[1] = htons(scope_id);

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	}

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	NET_EPOCH_ENTER(et);

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	CURVNET_SET_QUIET(vnet);

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	ifa = ifa_ifwithaddr((struct sockaddr *)&sin6);

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	CURVNET_RESTORE();

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	if (ifa != NULL) {

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		ifp = ifa->ifa_ifp;

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		if_ref(ifp);

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	} else {

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		ifp = NULL;

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	}

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	NET_EPOCH_EXIT(et);

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	return (ifp);

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}

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#endif

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static inline if_t

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dev_get_by_index(struct vnet *vnet, int if_index)

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{

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	struct epoch_tracker et;

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	if_t retval;

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	NET_EPOCH_ENTER(et);

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	CURVNET_SET(vnet);

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	retval = ifnet_byindex_ref(if_index);

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	CURVNET_RESTORE();

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	NET_EPOCH_EXIT(et);

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	return (retval);

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}

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#endif	/* _RDMA_IB_ADDR_FREEBSD_H */

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