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72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*
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* Copyright (c) 2017 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Dornierstr. 4
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <string.h>
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#include <unistd.h>
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#include <rtems/bsd/zerocopy.h>
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rtems_bsd_if_input
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rtems_bsd_set_if_input(const char *ifname,
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rtems_bsd_if_input_init init, rtems_bsd_if_input if_input, void *arg)
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{
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struct rtems_ifinputreq ifr;
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int s;
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int rv;
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if (s < 0) {
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return (NULL);
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}
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memset(&ifr, 0, sizeof(ifr));
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strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
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ifr.arg = arg;
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ifr.init = init;
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ifr.new_if_input = if_input;
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rv = ioctl(s, RTEMS_SIOSIFINPUT, (caddr_t)&ifr);
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close(s);
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if (rv != 0) {
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return (NULL);
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}
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return (ifr.old_if_input);
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}
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