0c325f53f1
connections over multiple paths. Multipath routing relies on mbuf flowid data for both transit and outbound traffic. Current code fills mbuf flowid from inp_flowid for connection-oriented sockets. However, inp_flowid is currently not calculated for outbound connections. This change creates simple hashing functions and starts calculating hashes for TCP,UDP/UDP-Lite and raw IP if multipath routes are present in the system. Reviewed by: glebius (previous version),ae Differential Revision: https://reviews.freebsd.org/D26523
58 lines
2.4 KiB
C
58 lines
2.4 KiB
C
/*-
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* Copyright (c) 2015
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* Alexander V. Chernikov <melifaro@FreeBSD.org>
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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, this list of conditions and the following 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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NETINET_IN_FIB_H_
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#define _NETINET_IN_FIB_H_
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struct route_in {
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/* common fields shared among all 'struct route' */
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struct nhop_object *ro_nh;
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struct llentry *ro_lle;
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char *ro_prepend;
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uint16_t ro_plen;
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uint16_t ro_flags;
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uint16_t ro_mtu; /* saved ro_rt mtu */
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uint16_t spare;
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/* custom sockaddr */
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struct sockaddr_in ro_dst4;
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};
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struct nhop_object *fib4_lookup(uint32_t fibnum, struct in_addr dst,
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uint32_t scopeid, uint32_t flags, uint32_t flowid);
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int fib4_check_urpf(uint32_t fibnum, struct in_addr dst, uint32_t scopeid,
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uint32_t flags, const struct ifnet *src_if);
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struct nhop_object *fib4_lookup_debugnet(uint32_t fibnum, struct in_addr dst,
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uint32_t scopeid, uint32_t flags);
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uint32_t fib4_calc_software_hash(struct in_addr src, struct in_addr dst,
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unsigned short src_port, unsigned short dst_port, char proto,
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uint32_t *phashtype);
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#endif
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