162 lines
4.0 KiB
C
162 lines
4.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2022 InnoGames GmbH
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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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*/
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#include <sys/cdefs.h>
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#include "opt_inet.h"
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#include "opt_inet6.h"
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#include <sys/param.h>
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#include <sys/errno.h>
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#include <netinet/in.h>
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#include <netinet6/ip6_var.h>
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#include <netinet6/scope6_var.h>
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#include <netpfil/pf/pfsync_nv.h>
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int
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pfsync_syncpeer_nvlist_to_sockaddr(const nvlist_t *nvl,
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struct sockaddr_storage *sa)
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{
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int af;
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if (!nvlist_exists_number(nvl, "af"))
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return (EINVAL);
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if (!nvlist_exists_binary(nvl, "address"))
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return (EINVAL);
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af = nvlist_get_number(nvl, "af");
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switch (af) {
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#ifdef INET
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case AF_INET: {
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struct sockaddr_in *in = (struct sockaddr_in *)sa;
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size_t len;
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const void *addr = nvlist_get_binary(nvl, "address", &len);
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in->sin_family = af;
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if (len != sizeof(*in))
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return (EINVAL);
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memcpy(in, addr, sizeof(*in));
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break;
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}
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#endif
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#ifdef INET6
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case AF_INET6: {
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struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)sa;
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size_t len;
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int error;
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const void *addr = nvlist_get_binary(nvl, "address", &len);
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in6->sin6_family = af;
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if (len != sizeof(*in6))
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return (EINVAL);
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memcpy(in6, addr, sizeof(*in6));
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error = sa6_embedscope(in6, V_ip6_use_defzone);
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if (error)
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return (error);
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break;
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}
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#endif
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default:
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return (EINVAL);
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}
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return (0);
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}
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nvlist_t *
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pfsync_sockaddr_to_syncpeer_nvlist(struct sockaddr_storage *sa)
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{
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nvlist_t *nvl;
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nvl = nvlist_create(0);
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if (nvl == NULL) {
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return (nvl);
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}
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switch (sa->ss_family) {
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#ifdef INET
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case AF_INET: {
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struct sockaddr_in *in = (struct sockaddr_in *)sa;
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nvlist_add_number(nvl, "af", in->sin_family);
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nvlist_add_binary(nvl, "address", in, sizeof(*in));
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break;
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}
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#endif
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#ifdef INET6
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case AF_INET6: {
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struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)sa;
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sa6_recoverscope(in6);
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nvlist_add_number(nvl, "af", in6->sin6_family);
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nvlist_add_binary(nvl, "address", in6, sizeof(*in6));
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break;
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}
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#endif
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default:
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return NULL;
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}
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return (nvl);
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}
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int
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pfsync_nvstatus_to_kstatus(const nvlist_t *nvl, struct pfsync_kstatus *status)
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{
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struct sockaddr_storage addr;
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int error;
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if (!nvlist_exists_number(nvl, "maxupdates"))
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return (EINVAL);
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if (!nvlist_exists_number(nvl, "flags"))
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return (EINVAL);
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status->maxupdates = nvlist_get_number(nvl, "maxupdates");
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status->version = nvlist_get_number(nvl, "version");
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status->flags = nvlist_get_number(nvl, "flags");
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if (nvlist_exists_string(nvl, "syncdev"))
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strlcpy(status->syncdev, nvlist_get_string(nvl, "syncdev"),
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IFNAMSIZ);
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if (nvlist_exists_nvlist(nvl, "syncpeer")) {
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memset(&addr, 0, sizeof(addr));
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if ((error = pfsync_syncpeer_nvlist_to_sockaddr(nvlist_get_nvlist(nvl, "syncpeer"), &addr)) != 0)
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return (error);
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status->syncpeer = addr;
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} else {
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memset(&status->syncpeer, 0, sizeof(status->syncpeer));
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}
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return (0);
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}
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