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7fa282e616
It is hard to reason about the contents of 'ifr' at any given time as nearly every function sets random fields or pointers in this structure. Use local on-stack clean 'struct ifreq' for each function instead. Reviewed by: kp Differential Revision: https://reviews.freebsd.org/D40534 MFC after: 2 weeks
101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/*-
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* Copyright (c) 2016 Yandex LLC
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* Copyright (c) 2016 Andrey V. Elsukov <ae@FreeBSD.org>
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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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*
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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 ``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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/stdint.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_ipsec.h>
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#include <net/route.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include <err.h>
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#include <errno.h>
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#include "ifconfig.h"
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static void
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ipsec_status(if_ctx *ctx)
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{
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uint32_t reqid;
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struct ifreq ifr = { .ifr_data = (caddr_t)&reqid };
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if (ioctl_ctx_ifr(ctx, IPSECGREQID, &ifr) == -1)
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return;
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printf("\treqid: %u\n", reqid);
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}
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static void
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setreqid(if_ctx *ctx, const char *val, int dummy __unused)
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{
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char *ep;
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uint32_t v;
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struct ifreq ifr = { .ifr_data = (caddr_t)&v };
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v = strtoul(val, &ep, 0);
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if (*ep != '\0') {
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warn("Invalid reqid value %s", val);
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return;
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}
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if (ioctl_ctx_ifr(ctx, IPSECSREQID, &ifr) == -1) {
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warn("ioctl(IPSECSREQID)");
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return;
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}
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}
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static struct cmd ipsec_cmds[] = {
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DEF_CMD_ARG("reqid", setreqid),
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};
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static struct afswtch af_ipsec = {
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.af_name = "af_ipsec",
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.af_af = AF_UNSPEC,
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.af_other_status = ipsec_status,
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};
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static __constructor void
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ipsec_ctor(void)
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{
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size_t i;
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for (i = 0; i < nitems(ipsec_cmds); i++)
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cmd_register(&ipsec_cmds[i]);
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af_register(&af_ipsec);
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#undef N
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}
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