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![Kristof Provost](/assets/img/avatar_default.png)
Allow userspace to retrieve low and high water marks, as well as the current number of half open states. MFC after: 1 week Sponsored by: Modirum MDPay
1799 lines
48 KiB
C
1799 lines
48 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2021 Rubicon Communications, LLC (Netgate)
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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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* - 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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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/ioctl.h>
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#include <sys/nv.h>
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <net/if.h>
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#include <net/pfvar.h>
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#include <netinet/in.h>
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#include <netpfil/pf/pf_nl.h>
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#include <netlink/netlink.h>
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#include <netlink/netlink_generic.h>
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#include <netlink/netlink_snl.h>
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#include <netlink/netlink_snl_generic.h>
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#include <netlink/netlink_snl_route.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include "libpfctl.h"
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const char* PFCTL_SYNCOOKIES_MODE_NAMES[] = {
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"never",
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"always",
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"adaptive"
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};
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static int _pfctl_clear_states(int , const struct pfctl_kill *,
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unsigned int *, uint64_t);
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static int
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pfctl_do_ioctl(int dev, uint cmd, size_t size, nvlist_t **nvl)
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{
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struct pfioc_nv nv;
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void *data;
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size_t nvlen;
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int ret;
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data = nvlist_pack(*nvl, &nvlen);
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if (nvlen > size)
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size = nvlen;
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retry:
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nv.data = malloc(size);
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memcpy(nv.data, data, nvlen);
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nv.len = nvlen;
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nv.size = size;
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ret = ioctl(dev, cmd, &nv);
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if (ret == -1 && errno == ENOSPC) {
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size *= 2;
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free(nv.data);
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goto retry;
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}
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nvlist_destroy(*nvl);
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*nvl = NULL;
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if (ret == 0) {
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*nvl = nvlist_unpack(nv.data, nv.len, 0);
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if (*nvl == NULL) {
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ret = EIO;
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goto out;
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}
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} else {
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ret = errno;
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}
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out:
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free(data);
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free(nv.data);
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return (ret);
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}
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static void
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pf_nvuint_8_array(const nvlist_t *nvl, const char *name, size_t maxelems,
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uint8_t *numbers, size_t *nelems)
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{
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const uint64_t *tmp;
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size_t elems;
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tmp = nvlist_get_number_array(nvl, name, &elems);
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assert(elems <= maxelems);
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for (size_t i = 0; i < elems; i++)
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numbers[i] = tmp[i];
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if (nelems)
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*nelems = elems;
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}
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static void
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pf_nvuint_16_array(const nvlist_t *nvl, const char *name, size_t maxelems,
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uint16_t *numbers, size_t *nelems)
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{
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const uint64_t *tmp;
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size_t elems;
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tmp = nvlist_get_number_array(nvl, name, &elems);
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assert(elems <= maxelems);
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for (size_t i = 0; i < elems; i++)
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numbers[i] = tmp[i];
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if (nelems)
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*nelems = elems;
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}
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static void
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pf_nvuint_32_array(const nvlist_t *nvl, const char *name, size_t maxelems,
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uint32_t *numbers, size_t *nelems)
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{
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const uint64_t *tmp;
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size_t elems;
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tmp = nvlist_get_number_array(nvl, name, &elems);
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for (size_t i = 0; i < elems && i < maxelems; i++)
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numbers[i] = tmp[i];
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if (nelems)
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*nelems = elems;
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}
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static void
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pf_nvuint_64_array(const nvlist_t *nvl, const char *name, size_t maxelems,
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uint64_t *numbers, size_t *nelems)
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{
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const uint64_t *tmp;
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size_t elems;
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tmp = nvlist_get_number_array(nvl, name, &elems);
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assert(elems <= maxelems);
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for (size_t i = 0; i < elems; i++)
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numbers[i] = tmp[i];
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if (nelems)
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*nelems = elems;
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}
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int
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pfctl_startstop(int start)
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{
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struct snl_state ss = {};
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struct snl_errmsg_data e = {};
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struct snl_writer nw;
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struct nlmsghdr *hdr;
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uint32_t seq_id;
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int family_id;
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snl_init(&ss, NETLINK_GENERIC);
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family_id = snl_get_genl_family(&ss, PFNL_FAMILY_NAME);
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if (family_id == 0)
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return (ENOTSUP);
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snl_init_writer(&ss, &nw);
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hdr = snl_create_genl_msg_request(&nw, family_id,
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start ? PFNL_CMD_START : PFNL_CMD_STOP);
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hdr = snl_finalize_msg(&nw);
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if (hdr == NULL)
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return (ENOMEM);
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seq_id = hdr->nlmsg_seq;
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snl_send_message(&ss, hdr);
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while ((hdr = snl_read_reply_multi(&ss, seq_id, &e)) != NULL) {
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}
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return (e.error);
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}
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static void
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_pfctl_get_status_counters(const nvlist_t *nvl,
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struct pfctl_status_counters *counters)
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{
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const uint64_t *ids, *counts;
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const char *const *names;
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size_t id_len, counter_len, names_len;
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ids = nvlist_get_number_array(nvl, "ids", &id_len);
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counts = nvlist_get_number_array(nvl, "counters", &counter_len);
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names = nvlist_get_string_array(nvl, "names", &names_len);
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assert(id_len == counter_len);
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assert(counter_len == names_len);
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TAILQ_INIT(counters);
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for (size_t i = 0; i < id_len; i++) {
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struct pfctl_status_counter *c;
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c = malloc(sizeof(*c));
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c->id = ids[i];
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c->counter = counts[i];
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c->name = strdup(names[i]);
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TAILQ_INSERT_TAIL(counters, c, entry);
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}
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}
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struct pfctl_status *
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pfctl_get_status(int dev)
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{
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struct pfctl_status *status;
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nvlist_t *nvl;
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size_t len;
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const void *chksum;
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status = calloc(1, sizeof(*status));
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if (status == NULL)
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return (NULL);
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nvl = nvlist_create(0);
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if (pfctl_do_ioctl(dev, DIOCGETSTATUSNV, 4096, &nvl)) {
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free(status);
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return (NULL);
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}
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status->running = nvlist_get_bool(nvl, "running");
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status->since = nvlist_get_number(nvl, "since");
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status->debug = nvlist_get_number(nvl, "debug");
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status->hostid = ntohl(nvlist_get_number(nvl, "hostid"));
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status->states = nvlist_get_number(nvl, "states");
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status->src_nodes = nvlist_get_number(nvl, "src_nodes");
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status->syncookies_active = nvlist_get_bool(nvl, "syncookies_active");
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status->reass = nvlist_get_number(nvl, "reass");
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strlcpy(status->ifname, nvlist_get_string(nvl, "ifname"),
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IFNAMSIZ);
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chksum = nvlist_get_binary(nvl, "chksum", &len);
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assert(len == PF_MD5_DIGEST_LENGTH);
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memcpy(status->pf_chksum, chksum, len);
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_pfctl_get_status_counters(nvlist_get_nvlist(nvl, "counters"),
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&status->counters);
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_pfctl_get_status_counters(nvlist_get_nvlist(nvl, "lcounters"),
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&status->lcounters);
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_pfctl_get_status_counters(nvlist_get_nvlist(nvl, "fcounters"),
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&status->fcounters);
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_pfctl_get_status_counters(nvlist_get_nvlist(nvl, "scounters"),
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&status->scounters);
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pf_nvuint_64_array(nvl, "pcounters", 2 * 2 * 3,
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(uint64_t *)status->pcounters, NULL);
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pf_nvuint_64_array(nvl, "bcounters", 2 * 2,
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(uint64_t *)status->bcounters, NULL);
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nvlist_destroy(nvl);
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return (status);
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}
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static uint64_t
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_pfctl_status_counter(struct pfctl_status_counters *counters, uint64_t id)
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{
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struct pfctl_status_counter *c;
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TAILQ_FOREACH(c, counters, entry) {
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if (c->id == id)
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return (c->counter);
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}
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return (0);
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}
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uint64_t
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pfctl_status_counter(struct pfctl_status *status, int id)
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{
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return (_pfctl_status_counter(&status->counters, id));
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}
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uint64_t
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pfctl_status_lcounter(struct pfctl_status *status, int id)
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{
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return (_pfctl_status_counter(&status->lcounters, id));
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}
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uint64_t
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pfctl_status_fcounter(struct pfctl_status *status, int id)
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{
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return (_pfctl_status_counter(&status->fcounters, id));
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}
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uint64_t
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pfctl_status_scounter(struct pfctl_status *status, int id)
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{
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return (_pfctl_status_counter(&status->scounters, id));
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}
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void
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pfctl_free_status(struct pfctl_status *status)
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{
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struct pfctl_status_counter *c, *tmp;
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if (status == NULL)
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return;
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TAILQ_FOREACH_SAFE(c, &status->counters, entry, tmp) {
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free(c->name);
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free(c);
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}
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TAILQ_FOREACH_SAFE(c, &status->lcounters, entry, tmp) {
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free(c->name);
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free(c);
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}
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TAILQ_FOREACH_SAFE(c, &status->fcounters, entry, tmp) {
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free(c->name);
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free(c);
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}
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TAILQ_FOREACH_SAFE(c, &status->scounters, entry, tmp) {
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free(c->name);
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free(c);
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}
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free(status);
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}
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static void
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pfctl_nv_add_addr(nvlist_t *nvparent, const char *name,
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const struct pf_addr *addr)
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{
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nvlist_t *nvl = nvlist_create(0);
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nvlist_add_binary(nvl, "addr", addr, sizeof(*addr));
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nvlist_add_nvlist(nvparent, name, nvl);
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nvlist_destroy(nvl);
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}
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static void
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pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *addr)
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{
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size_t len;
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const void *data;
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data = nvlist_get_binary(nvl, "addr", &len);
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assert(len == sizeof(struct pf_addr));
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memcpy(addr, data, len);
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}
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static void
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pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name,
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const struct pf_addr_wrap *addr)
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{
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nvlist_t *nvl = nvlist_create(0);
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nvlist_add_number(nvl, "type", addr->type);
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nvlist_add_number(nvl, "iflags", addr->iflags);
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if (addr->type == PF_ADDR_DYNIFTL)
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nvlist_add_string(nvl, "ifname", addr->v.ifname);
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if (addr->type == PF_ADDR_TABLE)
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nvlist_add_string(nvl, "tblname", addr->v.tblname);
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pfctl_nv_add_addr(nvl, "addr", &addr->v.a.addr);
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pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask);
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nvlist_add_nvlist(nvparent, name, nvl);
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nvlist_destroy(nvl);
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}
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static void
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pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr)
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{
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bzero(addr, sizeof(*addr));
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addr->type = nvlist_get_number(nvl, "type");
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addr->iflags = nvlist_get_number(nvl, "iflags");
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if (addr->type == PF_ADDR_DYNIFTL) {
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strlcpy(addr->v.ifname, nvlist_get_string(nvl, "ifname"),
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IFNAMSIZ);
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addr->p.dyncnt = nvlist_get_number(nvl, "dyncnt");
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}
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if (addr->type == PF_ADDR_TABLE) {
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strlcpy(addr->v.tblname, nvlist_get_string(nvl, "tblname"),
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PF_TABLE_NAME_SIZE);
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addr->p.tblcnt = nvlist_get_number(nvl, "tblcnt");
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}
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pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr);
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pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask);
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}
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static void
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pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name,
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const struct pf_rule_addr *addr)
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{
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uint64_t ports[2];
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nvlist_t *nvl = nvlist_create(0);
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pfctl_nv_add_addr_wrap(nvl, "addr", &addr->addr);
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ports[0] = addr->port[0];
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ports[1] = addr->port[1];
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nvlist_add_number_array(nvl, "port", ports, 2);
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nvlist_add_number(nvl, "neg", addr->neg);
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nvlist_add_number(nvl, "port_op", addr->port_op);
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nvlist_add_nvlist(nvparent, name, nvl);
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nvlist_destroy(nvl);
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}
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static void
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pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr)
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{
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pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr);
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pf_nvuint_16_array(nvl, "port", 2, addr->port, NULL);
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addr->neg = nvlist_get_number(nvl, "neg");
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addr->port_op = nvlist_get_number(nvl, "port_op");
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}
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|
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static void
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pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape)
|
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{
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mape->offset = nvlist_get_number(nvl, "offset");
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mape->psidlen = nvlist_get_number(nvl, "psidlen");
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mape->psid = nvlist_get_number(nvl, "psid");
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}
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|
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static void
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pf_nvpool_to_pool(const nvlist_t *nvl, struct pfctl_pool *pool)
|
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{
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size_t len;
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const void *data;
|
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|
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data = nvlist_get_binary(nvl, "key", &len);
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assert(len == sizeof(pool->key));
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memcpy(&pool->key, data, len);
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pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &pool->counter);
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pool->tblidx = nvlist_get_number(nvl, "tblidx");
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pf_nvuint_16_array(nvl, "proxy_port", 2, pool->proxy_port, NULL);
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pool->opts = nvlist_get_number(nvl, "opts");
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if (nvlist_exists_nvlist(nvl, "mape"))
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pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &pool->mape);
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}
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|
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static void
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pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid)
|
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{
|
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pf_nvuint_32_array(nvl, "uid", 2, uid->uid, NULL);
|
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uid->op = nvlist_get_number(nvl, "op");
|
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}
|
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|
|
static void
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pf_nvdivert_to_divert(const nvlist_t *nvl, struct pfctl_rule *rule)
|
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{
|
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pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &rule->divert.addr);
|
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rule->divert.port = nvlist_get_number(nvl, "port");
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}
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|
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static void
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|
pf_nvrule_to_rule(const nvlist_t *nvl, struct pfctl_rule *rule)
|
|
{
|
|
const uint64_t *skip;
|
|
const char *const *labels;
|
|
size_t skipcount, labelcount;
|
|
|
|
rule->nr = nvlist_get_number(nvl, "nr");
|
|
|
|
pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src);
|
|
pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst);
|
|
|
|
skip = nvlist_get_number_array(nvl, "skip", &skipcount);
|
|
assert(skip);
|
|
assert(skipcount == PF_SKIP_COUNT);
|
|
for (int i = 0; i < PF_SKIP_COUNT; i++)
|
|
rule->skip[i].nr = skip[i];
|
|
|
|
labels = nvlist_get_string_array(nvl, "labels", &labelcount);
|
|
assert(labelcount <= PF_RULE_MAX_LABEL_COUNT);
|
|
for (size_t i = 0; i < labelcount; i++)
|
|
strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE);
|
|
rule->ridentifier = nvlist_get_number(nvl, "ridentifier");
|
|
strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ);
|
|
strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE);
|
|
strlcpy(rule->pqname, nvlist_get_string(nvl, "pqname"), PF_QNAME_SIZE);
|
|
strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"),
|
|
PF_TAG_NAME_SIZE);
|
|
strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"),
|
|
PF_TAG_NAME_SIZE);
|
|
|
|
strlcpy(rule->overload_tblname, nvlist_get_string(nvl, "overload_tblname"),
|
|
PF_TABLE_NAME_SIZE);
|
|
|
|
pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rpool);
|
|
|
|
rule->evaluations = nvlist_get_number(nvl, "evaluations");
|
|
pf_nvuint_64_array(nvl, "packets", 2, rule->packets, NULL);
|
|
pf_nvuint_64_array(nvl, "bytes", 2, rule->bytes, NULL);
|
|
|
|
if (nvlist_exists_number(nvl, "timestamp")) {
|
|
rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp");
|
|
}
|
|
|
|
rule->os_fingerprint = nvlist_get_number(nvl, "os_fingerprint");
|
|
|
|
rule->rtableid = nvlist_get_number(nvl, "rtableid");
|
|
pf_nvuint_32_array(nvl, "timeout", PFTM_MAX, rule->timeout, NULL);
|
|
rule->max_states = nvlist_get_number(nvl, "max_states");
|
|
rule->max_src_nodes = nvlist_get_number(nvl, "max_src_nodes");
|
|
rule->max_src_states = nvlist_get_number(nvl, "max_src_states");
|
|
rule->max_src_conn = nvlist_get_number(nvl, "max_src_conn");
|
|
rule->max_src_conn_rate.limit =
|
|
nvlist_get_number(nvl, "max_src_conn_rate.limit");
|
|
rule->max_src_conn_rate.seconds =
|
|
nvlist_get_number(nvl, "max_src_conn_rate.seconds");
|
|
rule->qid = nvlist_get_number(nvl, "qid");
|
|
rule->pqid = nvlist_get_number(nvl, "pqid");
|
|
rule->dnpipe = nvlist_get_number(nvl, "dnpipe");
|
|
rule->dnrpipe = nvlist_get_number(nvl, "dnrpipe");
|
|
rule->free_flags = nvlist_get_number(nvl, "dnflags");
|
|
rule->prob = nvlist_get_number(nvl, "prob");
|
|
rule->cuid = nvlist_get_number(nvl, "cuid");
|
|
rule->cpid = nvlist_get_number(nvl, "cpid");
|
|
|
|
rule->return_icmp = nvlist_get_number(nvl, "return_icmp");
|
|
rule->return_icmp6 = nvlist_get_number(nvl, "return_icmp6");
|
|
rule->max_mss = nvlist_get_number(nvl, "max_mss");
|
|
rule->scrub_flags = nvlist_get_number(nvl, "scrub_flags");
|
|
|
|
pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid);
|
|
pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "gid"),
|
|
(struct pf_rule_uid *)&rule->gid);
|
|
|
|
rule->rule_flag = nvlist_get_number(nvl, "rule_flag");
|
|
rule->action = nvlist_get_number(nvl, "action");
|
|
rule->direction = nvlist_get_number(nvl, "direction");
|
|
rule->log = nvlist_get_number(nvl, "log");
|
|
rule->logif = nvlist_get_number(nvl, "logif");
|
|
rule->quick = nvlist_get_number(nvl, "quick");
|
|
rule->ifnot = nvlist_get_number(nvl, "ifnot");
|
|
rule->match_tag_not = nvlist_get_number(nvl, "match_tag_not");
|
|
rule->natpass = nvlist_get_number(nvl, "natpass");
|
|
|
|
rule->keep_state = nvlist_get_number(nvl, "keep_state");
|
|
rule->af = nvlist_get_number(nvl, "af");
|
|
rule->proto = nvlist_get_number(nvl, "proto");
|
|
rule->type = nvlist_get_number(nvl, "type");
|
|
rule->code = nvlist_get_number(nvl, "code");
|
|
rule->flags = nvlist_get_number(nvl, "flags");
|
|
rule->flagset = nvlist_get_number(nvl, "flagset");
|
|
rule->min_ttl = nvlist_get_number(nvl, "min_ttl");
|
|
rule->allow_opts = nvlist_get_number(nvl, "allow_opts");
|
|
rule->rt = nvlist_get_number(nvl, "rt");
|
|
rule->return_ttl = nvlist_get_number(nvl, "return_ttl");
|
|
rule->tos = nvlist_get_number(nvl, "tos");
|
|
rule->set_tos = nvlist_get_number(nvl, "set_tos");
|
|
rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative");
|
|
rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard");
|
|
|
|
rule->flush = nvlist_get_number(nvl, "flush");
|
|
rule->prio = nvlist_get_number(nvl, "prio");
|
|
pf_nvuint_8_array(nvl, "set_prio", 2, rule->set_prio, NULL);
|
|
|
|
pf_nvdivert_to_divert(nvlist_get_nvlist(nvl, "divert"), rule);
|
|
|
|
rule->states_cur = nvlist_get_number(nvl, "states_cur");
|
|
rule->states_tot = nvlist_get_number(nvl, "states_tot");
|
|
rule->src_nodes = nvlist_get_number(nvl, "src_nodes");
|
|
}
|
|
|
|
static void
|
|
pfctl_nveth_addr_to_eth_addr(const nvlist_t *nvl, struct pfctl_eth_addr *addr)
|
|
{
|
|
static const u_int8_t EMPTY_MAC[ETHER_ADDR_LEN] = { 0 };
|
|
size_t len;
|
|
const void *data;
|
|
|
|
data = nvlist_get_binary(nvl, "addr", &len);
|
|
assert(len == sizeof(addr->addr));
|
|
memcpy(addr->addr, data, sizeof(addr->addr));
|
|
|
|
data = nvlist_get_binary(nvl, "mask", &len);
|
|
assert(len == sizeof(addr->mask));
|
|
memcpy(addr->mask, data, sizeof(addr->mask));
|
|
|
|
addr->neg = nvlist_get_bool(nvl, "neg");
|
|
|
|
/* To make checks for 'is this address set?' easier. */
|
|
addr->isset = memcmp(addr->addr, EMPTY_MAC, ETHER_ADDR_LEN) != 0;
|
|
}
|
|
|
|
static nvlist_t *
|
|
pfctl_eth_addr_to_nveth_addr(const struct pfctl_eth_addr *addr)
|
|
{
|
|
nvlist_t *nvl;
|
|
|
|
nvl = nvlist_create(0);
|
|
if (nvl == NULL)
|
|
return (NULL);
|
|
|
|
nvlist_add_bool(nvl, "neg", addr->neg);
|
|
nvlist_add_binary(nvl, "addr", &addr->addr, ETHER_ADDR_LEN);
|
|
nvlist_add_binary(nvl, "mask", &addr->mask, ETHER_ADDR_LEN);
|
|
|
|
return (nvl);
|
|
}
|
|
|
|
static void
|
|
pfctl_nveth_rule_to_eth_rule(const nvlist_t *nvl, struct pfctl_eth_rule *rule)
|
|
{
|
|
const char *const *labels;
|
|
size_t labelcount, i;
|
|
|
|
rule->nr = nvlist_get_number(nvl, "nr");
|
|
rule->quick = nvlist_get_bool(nvl, "quick");
|
|
strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ);
|
|
rule->ifnot = nvlist_get_bool(nvl, "ifnot");
|
|
rule->direction = nvlist_get_number(nvl, "direction");
|
|
rule->proto = nvlist_get_number(nvl, "proto");
|
|
strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"),
|
|
PF_TAG_NAME_SIZE);
|
|
rule->match_tag = nvlist_get_number(nvl, "match_tag");
|
|
rule->match_tag_not = nvlist_get_bool(nvl, "match_tag_not");
|
|
|
|
labels = nvlist_get_string_array(nvl, "labels", &labelcount);
|
|
assert(labelcount <= PF_RULE_MAX_LABEL_COUNT);
|
|
for (i = 0; i < labelcount; i++)
|
|
strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE);
|
|
rule->ridentifier = nvlist_get_number(nvl, "ridentifier");
|
|
|
|
pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "src"),
|
|
&rule->src);
|
|
pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "dst"),
|
|
&rule->dst);
|
|
|
|
pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipsrc"),
|
|
&rule->ipsrc);
|
|
pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipdst"),
|
|
&rule->ipdst);
|
|
|
|
rule->evaluations = nvlist_get_number(nvl, "evaluations");
|
|
rule->packets[0] = nvlist_get_number(nvl, "packets-in");
|
|
rule->packets[1] = nvlist_get_number(nvl, "packets-out");
|
|
rule->bytes[0] = nvlist_get_number(nvl, "bytes-in");
|
|
rule->bytes[1] = nvlist_get_number(nvl, "bytes-out");
|
|
|
|
if (nvlist_exists_number(nvl, "timestamp")) {
|
|
rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp");
|
|
}
|
|
|
|
strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE);
|
|
strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"),
|
|
PF_TAG_NAME_SIZE);
|
|
|
|
rule->dnpipe = nvlist_get_number(nvl, "dnpipe");
|
|
rule->dnflags = nvlist_get_number(nvl, "dnflags");
|
|
|
|
rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative");
|
|
rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard");
|
|
|
|
strlcpy(rule->bridge_to, nvlist_get_string(nvl, "bridge_to"),
|
|
IFNAMSIZ);
|
|
|
|
rule->action = nvlist_get_number(nvl, "action");
|
|
}
|
|
|
|
int
|
|
pfctl_get_eth_rulesets_info(int dev, struct pfctl_eth_rulesets_info *ri,
|
|
const char *path)
|
|
{
|
|
nvlist_t *nvl;
|
|
int ret;
|
|
|
|
bzero(ri, sizeof(*ri));
|
|
|
|
nvl = nvlist_create(0);
|
|
nvlist_add_string(nvl, "path", path);
|
|
|
|
if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESETS, 256, &nvl)) != 0)
|
|
return (ret);
|
|
|
|
ri->nr = nvlist_get_number(nvl, "nr");
|
|
|
|
nvlist_destroy(nvl);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_get_eth_ruleset(int dev, const char *path, int nr,
|
|
struct pfctl_eth_ruleset_info *ri)
|
|
{
|
|
nvlist_t *nvl;
|
|
int ret;
|
|
|
|
bzero(ri, sizeof(*ri));
|
|
|
|
nvl = nvlist_create(0);
|
|
nvlist_add_string(nvl, "path", path);
|
|
nvlist_add_number(nvl, "nr", nr);
|
|
|
|
if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESET, 1024, &nvl)) != 0)
|
|
return (ret);
|
|
|
|
ri->nr = nvlist_get_number(nvl, "nr");
|
|
strlcpy(ri->path, nvlist_get_string(nvl, "path"), MAXPATHLEN);
|
|
strlcpy(ri->name, nvlist_get_string(nvl, "name"),
|
|
PF_ANCHOR_NAME_SIZE);
|
|
|
|
nvlist_destroy(nvl);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_get_eth_rules_info(int dev, struct pfctl_eth_rules_info *rules,
|
|
const char *path)
|
|
{
|
|
nvlist_t *nvl;
|
|
int ret;
|
|
|
|
bzero(rules, sizeof(*rules));
|
|
|
|
nvl = nvlist_create(0);
|
|
nvlist_add_string(nvl, "anchor", path);
|
|
|
|
if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULES, 1024, &nvl)) != 0)
|
|
return (ret);
|
|
|
|
rules->nr = nvlist_get_number(nvl, "nr");
|
|
rules->ticket = nvlist_get_number(nvl, "ticket");
|
|
|
|
nvlist_destroy(nvl);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_get_eth_rule(int dev, uint32_t nr, uint32_t ticket,
|
|
const char *path, struct pfctl_eth_rule *rule, bool clear,
|
|
char *anchor_call)
|
|
{
|
|
nvlist_t *nvl;
|
|
int ret;
|
|
|
|
nvl = nvlist_create(0);
|
|
|
|
nvlist_add_string(nvl, "anchor", path);
|
|
nvlist_add_number(nvl, "ticket", ticket);
|
|
nvlist_add_number(nvl, "nr", nr);
|
|
nvlist_add_bool(nvl, "clear", clear);
|
|
|
|
if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULE, 4096, &nvl)) != 0)
|
|
return (ret);
|
|
|
|
pfctl_nveth_rule_to_eth_rule(nvl, rule);
|
|
|
|
if (anchor_call)
|
|
strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"),
|
|
MAXPATHLEN);
|
|
|
|
nvlist_destroy(nvl);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_add_eth_rule(int dev, const struct pfctl_eth_rule *r, const char *anchor,
|
|
const char *anchor_call, uint32_t ticket)
|
|
{
|
|
struct pfioc_nv nv;
|
|
nvlist_t *nvl, *addr;
|
|
void *packed;
|
|
int error = 0;
|
|
size_t labelcount, size;
|
|
|
|
nvl = nvlist_create(0);
|
|
|
|
nvlist_add_number(nvl, "ticket", ticket);
|
|
nvlist_add_string(nvl, "anchor", anchor);
|
|
nvlist_add_string(nvl, "anchor_call", anchor_call);
|
|
|
|
nvlist_add_number(nvl, "nr", r->nr);
|
|
nvlist_add_bool(nvl, "quick", r->quick);
|
|
nvlist_add_string(nvl, "ifname", r->ifname);
|
|
nvlist_add_bool(nvl, "ifnot", r->ifnot);
|
|
nvlist_add_number(nvl, "direction", r->direction);
|
|
nvlist_add_number(nvl, "proto", r->proto);
|
|
nvlist_add_string(nvl, "match_tagname", r->match_tagname);
|
|
nvlist_add_bool(nvl, "match_tag_not", r->match_tag_not);
|
|
|
|
addr = pfctl_eth_addr_to_nveth_addr(&r->src);
|
|
if (addr == NULL) {
|
|
nvlist_destroy(nvl);
|
|
return (ENOMEM);
|
|
}
|
|
nvlist_add_nvlist(nvl, "src", addr);
|
|
nvlist_destroy(addr);
|
|
|
|
addr = pfctl_eth_addr_to_nveth_addr(&r->dst);
|
|
if (addr == NULL) {
|
|
nvlist_destroy(nvl);
|
|
return (ENOMEM);
|
|
}
|
|
nvlist_add_nvlist(nvl, "dst", addr);
|
|
nvlist_destroy(addr);
|
|
|
|
pfctl_nv_add_rule_addr(nvl, "ipsrc", &r->ipsrc);
|
|
pfctl_nv_add_rule_addr(nvl, "ipdst", &r->ipdst);
|
|
|
|
labelcount = 0;
|
|
while (labelcount < PF_RULE_MAX_LABEL_COUNT &&
|
|
r->label[labelcount][0] != 0) {
|
|
nvlist_append_string_array(nvl, "labels",
|
|
r->label[labelcount]);
|
|
labelcount++;
|
|
}
|
|
nvlist_add_number(nvl, "ridentifier", r->ridentifier);
|
|
|
|
nvlist_add_string(nvl, "qname", r->qname);
|
|
nvlist_add_string(nvl, "tagname", r->tagname);
|
|
nvlist_add_number(nvl, "dnpipe", r->dnpipe);
|
|
nvlist_add_number(nvl, "dnflags", r->dnflags);
|
|
|
|
nvlist_add_string(nvl, "bridge_to", r->bridge_to);
|
|
|
|
nvlist_add_number(nvl, "action", r->action);
|
|
|
|
packed = nvlist_pack(nvl, &size);
|
|
if (packed == NULL) {
|
|
nvlist_destroy(nvl);
|
|
return (ENOMEM);
|
|
}
|
|
|
|
nv.len = size;
|
|
nv.size = size;
|
|
nv.data = packed;
|
|
|
|
if (ioctl(dev, DIOCADDETHRULE, &nv) != 0)
|
|
error = errno;
|
|
|
|
free(packed);
|
|
nvlist_destroy(nvl);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static void
|
|
snl_add_msg_attr_addr_wrap(struct snl_writer *nw, uint32_t type, const struct pf_addr_wrap *addr)
|
|
{
|
|
int off;
|
|
|
|
off = snl_add_msg_attr_nested(nw, type);
|
|
|
|
snl_add_msg_attr_ip6(nw, PF_AT_ADDR, &addr->v.a.addr.v6);
|
|
snl_add_msg_attr_ip6(nw, PF_AT_MASK, &addr->v.a.mask.v6);
|
|
|
|
if (addr->type == PF_ADDR_DYNIFTL)
|
|
snl_add_msg_attr_string(nw, PF_AT_IFNAME, addr->v.ifname);
|
|
if (addr->type == PF_ADDR_TABLE)
|
|
snl_add_msg_attr_string(nw, PF_AT_TABLENAME, addr->v.tblname);
|
|
snl_add_msg_attr_u8(nw, PF_AT_TYPE, addr->type);
|
|
snl_add_msg_attr_u8(nw, PF_AT_IFLAGS, addr->iflags);
|
|
|
|
snl_end_attr_nested(nw, off);
|
|
}
|
|
|
|
static void
|
|
snl_add_msg_attr_rule_addr(struct snl_writer *nw, uint32_t type, const struct pf_rule_addr *addr)
|
|
{
|
|
int off;
|
|
|
|
off = snl_add_msg_attr_nested(nw, type);
|
|
|
|
snl_add_msg_attr_addr_wrap(nw, PF_RAT_ADDR, &addr->addr);
|
|
snl_add_msg_attr_u16(nw, PF_RAT_SRC_PORT, addr->port[0]);
|
|
snl_add_msg_attr_u16(nw, PF_RAT_DST_PORT, addr->port[1]);
|
|
snl_add_msg_attr_u8(nw, PF_RAT_NEG, addr->neg);
|
|
snl_add_msg_attr_u8(nw, PF_RAT_OP, addr->port_op);
|
|
|
|
snl_end_attr_nested(nw, off);
|
|
}
|
|
|
|
static void
|
|
snl_add_msg_attr_rule_labels(struct snl_writer *nw, uint32_t type, const char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE])
|
|
{
|
|
int off, i = 0;
|
|
|
|
off = snl_add_msg_attr_nested(nw, type);
|
|
|
|
while (labels[i][0] != 0 &&
|
|
i < PF_RULE_MAX_LABEL_COUNT) {
|
|
snl_add_msg_attr_string(nw, PF_LT_LABEL, labels[i]);
|
|
i++;
|
|
}
|
|
|
|
snl_end_attr_nested(nw, off);
|
|
}
|
|
|
|
static void
|
|
snl_add_msg_attr_mape(struct snl_writer *nw, uint32_t type, const struct pf_mape_portset *me)
|
|
{
|
|
int off;
|
|
|
|
off = snl_add_msg_attr_nested(nw, type);
|
|
|
|
snl_add_msg_attr_u8(nw, PF_MET_OFFSET, me->offset);
|
|
snl_add_msg_attr_u8(nw, PF_MET_PSID_LEN, me->psidlen);
|
|
snl_add_msg_attr_u16(nw, PF_MET_PSID, me->psid);
|
|
|
|
snl_end_attr_nested(nw, off);
|
|
}
|
|
|
|
static void
|
|
snl_add_msg_attr_rpool(struct snl_writer *nw, uint32_t type, const struct pfctl_pool *pool)
|
|
{
|
|
int off;
|
|
|
|
off = snl_add_msg_attr_nested(nw, type);
|
|
|
|
snl_add_msg_attr(nw, PF_PT_KEY, sizeof(pool->key), &pool->key);
|
|
snl_add_msg_attr_ip6(nw, PF_PT_COUNTER, &pool->counter.v6);
|
|
snl_add_msg_attr_u32(nw, PF_PT_TBLIDX, pool->tblidx);
|
|
snl_add_msg_attr_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]);
|
|
snl_add_msg_attr_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]);
|
|
snl_add_msg_attr_u8(nw, PF_PT_OPTS, pool->opts);
|
|
snl_add_msg_attr_mape(nw, PF_PT_MAPE, &pool->mape);
|
|
|
|
snl_end_attr_nested(nw, off);
|
|
}
|
|
|
|
static void
|
|
snl_add_msg_attr_timeouts(struct snl_writer *nw, uint32_t type, const uint32_t *timeouts)
|
|
{
|
|
int off;
|
|
|
|
off = snl_add_msg_attr_nested(nw, type);
|
|
|
|
for (int i = 0; i < PFTM_MAX; i++)
|
|
snl_add_msg_attr_u32(nw, PF_TT_TIMEOUT, timeouts[i]);
|
|
|
|
snl_end_attr_nested(nw, off);
|
|
}
|
|
|
|
static void
|
|
snl_add_msg_attr_uid(struct snl_writer *nw, uint32_t type, const struct pf_rule_uid *uid)
|
|
{
|
|
int off;
|
|
|
|
off = snl_add_msg_attr_nested(nw, type);
|
|
|
|
snl_add_msg_attr_u32(nw, PF_RUT_UID_LOW, uid->uid[0]);
|
|
snl_add_msg_attr_u32(nw, PF_RUT_UID_HIGH, uid->uid[1]);
|
|
snl_add_msg_attr_u8(nw, PF_RUT_OP, uid->op);
|
|
|
|
snl_end_attr_nested(nw, off);
|
|
}
|
|
|
|
static void
|
|
snl_add_msg_attr_pf_rule(struct snl_writer *nw, uint32_t type, const struct pfctl_rule *r)
|
|
{
|
|
int off;
|
|
|
|
off = snl_add_msg_attr_nested(nw, type);
|
|
|
|
snl_add_msg_attr_rule_addr(nw, PF_RT_SRC, &r->src);
|
|
snl_add_msg_attr_rule_addr(nw, PF_RT_DST, &r->dst);
|
|
snl_add_msg_attr_rule_labels(nw, PF_RT_LABELS, r->label);
|
|
snl_add_msg_attr_u32(nw, PF_RT_RIDENTIFIER, r->ridentifier);
|
|
snl_add_msg_attr_string(nw, PF_RT_IFNAME, r->ifname);
|
|
snl_add_msg_attr_string(nw, PF_RT_QNAME, r->qname);
|
|
snl_add_msg_attr_string(nw, PF_RT_PQNAME, r->pqname);
|
|
snl_add_msg_attr_string(nw, PF_RT_TAGNAME, r->tagname);
|
|
snl_add_msg_attr_string(nw, PF_RT_MATCH_TAGNAME, r->match_tagname);
|
|
snl_add_msg_attr_string(nw, PF_RT_OVERLOAD_TBLNAME, r->overload_tblname);
|
|
snl_add_msg_attr_rpool(nw, PF_RT_RPOOL, &r->rpool);
|
|
snl_add_msg_attr_u32(nw, PF_RT_OS_FINGERPRINT, r->os_fingerprint);
|
|
snl_add_msg_attr_u32(nw, PF_RT_RTABLEID, r->rtableid);
|
|
snl_add_msg_attr_timeouts(nw, PF_RT_TIMEOUT, r->timeout);
|
|
snl_add_msg_attr_u32(nw, PF_RT_MAX_STATES, r->max_states);
|
|
snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_NODES, r->max_src_nodes);
|
|
snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_STATES, r->max_src_states);
|
|
snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, r->max_src_conn_rate.limit);
|
|
snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, r->max_src_conn_rate.seconds);
|
|
|
|
snl_add_msg_attr_u16(nw, PF_RT_DNPIPE, r->dnpipe);
|
|
snl_add_msg_attr_u16(nw, PF_RT_DNRPIPE, r->dnrpipe);
|
|
snl_add_msg_attr_u32(nw, PF_RT_DNFLAGS, r->free_flags);
|
|
|
|
snl_add_msg_attr_u32(nw, PF_RT_NR, r->nr);
|
|
snl_add_msg_attr_u32(nw, PF_RT_PROB, r->prob);
|
|
snl_add_msg_attr_u32(nw, PF_RT_CUID, r->cuid);
|
|
snl_add_msg_attr_u32(nw, PF_RT_CPID, r->cpid);
|
|
|
|
snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP, r->return_icmp);
|
|
snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP6, r->return_icmp6);
|
|
snl_add_msg_attr_u16(nw, PF_RT_MAX_MSS, r->max_mss);
|
|
snl_add_msg_attr_u16(nw, PF_RT_SCRUB_FLAGS, r->scrub_flags);
|
|
|
|
snl_add_msg_attr_uid(nw, PF_RT_UID, &r->uid);
|
|
snl_add_msg_attr_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&r->gid);
|
|
|
|
snl_add_msg_attr_u32(nw, PF_RT_RULE_FLAG, r->rule_flag);
|
|
snl_add_msg_attr_u8(nw, PF_RT_ACTION, r->action);
|
|
snl_add_msg_attr_u8(nw, PF_RT_DIRECTION, r->direction);
|
|
snl_add_msg_attr_u8(nw, PF_RT_LOG, r->log);
|
|
snl_add_msg_attr_u8(nw, PF_RT_LOGIF, r->logif);
|
|
snl_add_msg_attr_u8(nw, PF_RT_QUICK, r->quick);
|
|
snl_add_msg_attr_u8(nw, PF_RT_IF_NOT, r->ifnot);
|
|
snl_add_msg_attr_u8(nw, PF_RT_MATCH_TAG_NOT, r->match_tag_not);
|
|
snl_add_msg_attr_u8(nw, PF_RT_NATPASS, r->natpass);
|
|
snl_add_msg_attr_u8(nw, PF_RT_KEEP_STATE, r->keep_state);
|
|
snl_add_msg_attr_u8(nw, PF_RT_AF, r->af);
|
|
snl_add_msg_attr_u8(nw, PF_RT_PROTO, r->proto);
|
|
snl_add_msg_attr_u8(nw, PF_RT_TYPE, r->type);
|
|
snl_add_msg_attr_u8(nw, PF_RT_CODE, r->code);
|
|
snl_add_msg_attr_u8(nw, PF_RT_FLAGS, r->flags);
|
|
snl_add_msg_attr_u8(nw, PF_RT_FLAGSET, r->flagset);
|
|
snl_add_msg_attr_u8(nw, PF_RT_MIN_TTL, r->min_ttl);
|
|
snl_add_msg_attr_u8(nw, PF_RT_ALLOW_OPTS, r->allow_opts);
|
|
snl_add_msg_attr_u8(nw, PF_RT_RT, r->rt);
|
|
snl_add_msg_attr_u8(nw, PF_RT_RETURN_TTL, r->return_ttl);
|
|
snl_add_msg_attr_u8(nw, PF_RT_TOS, r->tos);
|
|
snl_add_msg_attr_u8(nw, PF_RT_SET_TOS, r->set_tos);
|
|
|
|
snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_RELATIVE, r->anchor_relative);
|
|
snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_WILDCARD, r->anchor_wildcard);
|
|
snl_add_msg_attr_u8(nw, PF_RT_FLUSH, r->flush);
|
|
snl_add_msg_attr_u8(nw, PF_RT_PRIO, r->prio);
|
|
snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO, r->set_prio[0]);
|
|
snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO_REPLY, r->set_prio[1]);
|
|
|
|
snl_add_msg_attr_ip6(nw, PF_RT_DIVERT_ADDRESS, &r->divert.addr.v6);
|
|
snl_add_msg_attr_u16(nw, PF_RT_DIVERT_PORT, r->divert.port);
|
|
|
|
snl_end_attr_nested(nw, off);
|
|
}
|
|
|
|
int
|
|
pfctl_add_rule(int dev __unused, const struct pfctl_rule *r, const char *anchor,
|
|
const char *anchor_call, uint32_t ticket, uint32_t pool_ticket)
|
|
{
|
|
struct snl_writer nw;
|
|
struct snl_state ss = {};
|
|
struct snl_errmsg_data e = {};
|
|
struct nlmsghdr *hdr;
|
|
uint32_t seq_id;
|
|
int family_id;
|
|
|
|
snl_init(&ss, NETLINK_GENERIC);
|
|
family_id = snl_get_genl_family(&ss, PFNL_FAMILY_NAME);
|
|
if (family_id == 0)
|
|
return (ENOTSUP);
|
|
|
|
snl_init_writer(&ss, &nw);
|
|
hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_ADDRULE);
|
|
hdr->nlmsg_flags |= NLM_F_DUMP;
|
|
snl_add_msg_attr_u32(&nw, PF_ART_TICKET, ticket);
|
|
snl_add_msg_attr_u32(&nw, PF_ART_POOL_TICKET, pool_ticket);
|
|
snl_add_msg_attr_string(&nw, PF_ART_ANCHOR, anchor);
|
|
snl_add_msg_attr_string(&nw, PF_ART_ANCHOR_CALL, anchor_call);
|
|
|
|
snl_add_msg_attr_pf_rule(&nw, PF_ART_RULE, r);
|
|
|
|
if ((hdr = snl_finalize_msg(&nw)) == NULL)
|
|
return (ENXIO);
|
|
|
|
seq_id = hdr->nlmsg_seq;
|
|
|
|
if (! snl_send_message(&ss, hdr)) {
|
|
printf("Send failed\n");
|
|
return (ENXIO);
|
|
}
|
|
|
|
while ((hdr = snl_read_reply_multi(&ss, seq_id, &e)) != NULL) {
|
|
}
|
|
|
|
return (e.error);
|
|
}
|
|
|
|
int
|
|
pfctl_get_rules_info(int dev, struct pfctl_rules_info *rules, uint32_t ruleset,
|
|
const char *path)
|
|
{
|
|
struct pfioc_rule pr;
|
|
int ret;
|
|
|
|
bzero(&pr, sizeof(pr));
|
|
if (strlcpy(pr.anchor, path, sizeof(pr.anchor)) >= sizeof(pr.anchor))
|
|
return (E2BIG);
|
|
|
|
pr.rule.action = ruleset;
|
|
ret = ioctl(dev, DIOCGETRULES, &pr);
|
|
if (ret != 0)
|
|
return (ret);
|
|
|
|
rules->nr = pr.nr;
|
|
rules->ticket = pr.ticket;
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_get_rule(int dev, uint32_t nr, uint32_t ticket, const char *anchor,
|
|
uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call)
|
|
{
|
|
return (pfctl_get_clear_rule(dev, nr, ticket, anchor, ruleset, rule,
|
|
anchor_call, false));
|
|
}
|
|
|
|
int pfctl_get_clear_rule(int dev, uint32_t nr, uint32_t ticket,
|
|
const char *anchor, uint32_t ruleset, struct pfctl_rule *rule,
|
|
char *anchor_call, bool clear)
|
|
{
|
|
nvlist_t *nvl;
|
|
int ret;
|
|
|
|
nvl = nvlist_create(0);
|
|
if (nvl == 0)
|
|
return (ENOMEM);
|
|
|
|
nvlist_add_number(nvl, "nr", nr);
|
|
nvlist_add_number(nvl, "ticket", ticket);
|
|
nvlist_add_string(nvl, "anchor", anchor);
|
|
nvlist_add_number(nvl, "ruleset", ruleset);
|
|
|
|
if (clear)
|
|
nvlist_add_bool(nvl, "clear_counter", true);
|
|
|
|
if ((ret = pfctl_do_ioctl(dev, DIOCGETRULENV, 8192, &nvl)) != 0)
|
|
return (ret);
|
|
|
|
pf_nvrule_to_rule(nvlist_get_nvlist(nvl, "rule"), rule);
|
|
|
|
if (anchor_call)
|
|
strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"),
|
|
MAXPATHLEN);
|
|
|
|
nvlist_destroy(nvl);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_set_keepcounters(int dev, bool keep)
|
|
{
|
|
struct pfioc_nv nv;
|
|
nvlist_t *nvl;
|
|
int ret;
|
|
|
|
nvl = nvlist_create(0);
|
|
|
|
nvlist_add_bool(nvl, "keep_counters", keep);
|
|
|
|
nv.data = nvlist_pack(nvl, &nv.len);
|
|
nv.size = nv.len;
|
|
|
|
nvlist_destroy(nvl);
|
|
|
|
ret = ioctl(dev, DIOCKEEPCOUNTERS, &nv);
|
|
|
|
free(nv.data);
|
|
return (ret);
|
|
}
|
|
|
|
struct pfctl_creator {
|
|
uint32_t id;
|
|
};
|
|
#define _IN(_field) offsetof(struct genlmsghdr, _field)
|
|
#define _OUT(_field) offsetof(struct pfctl_creator, _field)
|
|
static struct snl_attr_parser ap_creators[] = {
|
|
{ .type = PF_ST_CREATORID, .off = _OUT(id), .cb = snl_attr_get_uint32 },
|
|
};
|
|
static struct snl_field_parser fp_creators[] = {
|
|
};
|
|
#undef _IN
|
|
#undef _OUT
|
|
SNL_DECLARE_PARSER(creator_parser, struct genlmsghdr, fp_creators, ap_creators);
|
|
|
|
static int
|
|
pfctl_get_creators_nl(struct snl_state *ss, uint32_t *creators, size_t *len)
|
|
{
|
|
|
|
int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME);
|
|
size_t i = 0;
|
|
|
|
struct nlmsghdr *hdr;
|
|
struct snl_writer nw;
|
|
|
|
if (family_id == 0)
|
|
return (ENOTSUP);
|
|
|
|
snl_init_writer(ss, &nw);
|
|
hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETCREATORS);
|
|
hdr->nlmsg_flags |= NLM_F_DUMP;
|
|
hdr = snl_finalize_msg(&nw);
|
|
if (hdr == NULL)
|
|
return (ENOMEM);
|
|
uint32_t seq_id = hdr->nlmsg_seq;
|
|
|
|
snl_send_message(ss, hdr);
|
|
|
|
struct snl_errmsg_data e = {};
|
|
while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) {
|
|
struct pfctl_creator c;
|
|
bzero(&c, sizeof(c));
|
|
|
|
if (!snl_parse_nlmsg(ss, hdr, &creator_parser, &c))
|
|
continue;
|
|
|
|
creators[i] = c.id;
|
|
i++;
|
|
if (i > *len)
|
|
return (E2BIG);
|
|
}
|
|
|
|
*len = i;
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_get_creatorids(uint32_t *creators, size_t *len)
|
|
{
|
|
struct snl_state ss = {};
|
|
int error;
|
|
|
|
snl_init(&ss, NETLINK_GENERIC);
|
|
error = pfctl_get_creators_nl(&ss, creators, len);
|
|
snl_free(&ss);
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
static void
|
|
pfctl_nv_add_state_cmp(nvlist_t *nvl, const char *name,
|
|
const struct pfctl_state_cmp *cmp)
|
|
{
|
|
nvlist_t *nv;
|
|
|
|
nv = nvlist_create(0);
|
|
|
|
nvlist_add_number(nv, "id", cmp->id);
|
|
nvlist_add_number(nv, "creatorid", htonl(cmp->creatorid));
|
|
nvlist_add_number(nv, "direction", cmp->direction);
|
|
|
|
nvlist_add_nvlist(nvl, name, nv);
|
|
nvlist_destroy(nv);
|
|
}
|
|
|
|
static inline bool
|
|
snl_attr_get_pfaddr(struct snl_state *ss __unused, struct nlattr *nla,
|
|
const void *arg __unused, void *target)
|
|
{
|
|
memcpy(target, NLA_DATA(nla), NLA_DATA_LEN(nla));
|
|
return (true);
|
|
}
|
|
|
|
static inline bool
|
|
snl_attr_store_ifname(struct snl_state *ss __unused, struct nlattr *nla,
|
|
const void *arg __unused, void *target)
|
|
{
|
|
size_t maxlen = NLA_DATA_LEN(nla);
|
|
|
|
if (strnlen((char *)NLA_DATA(nla), maxlen) < maxlen) {
|
|
strlcpy(target, (char *)NLA_DATA(nla), maxlen);
|
|
return (true);
|
|
}
|
|
return (false);
|
|
}
|
|
|
|
#define _OUT(_field) offsetof(struct pfctl_state_peer, _field)
|
|
static const struct snl_attr_parser nla_p_speer[] = {
|
|
{ .type = PF_STP_SEQLO, .off = _OUT(seqlo), .cb = snl_attr_get_uint32 },
|
|
{ .type = PF_STP_SEQHI, .off = _OUT(seqhi), .cb = snl_attr_get_uint32 },
|
|
{ .type = PF_STP_SEQDIFF, .off = _OUT(seqdiff), .cb = snl_attr_get_uint32 },
|
|
{ .type = PF_STP_STATE, .off = _OUT(state), .cb = snl_attr_get_uint8 },
|
|
{ .type = PF_STP_WSCALE, .off = _OUT(wscale), .cb = snl_attr_get_uint8 },
|
|
};
|
|
SNL_DECLARE_ATTR_PARSER(speer_parser, nla_p_speer);
|
|
#undef _OUT
|
|
|
|
#define _OUT(_field) offsetof(struct pf_state_key_export, _field)
|
|
static const struct snl_attr_parser nla_p_skey[] = {
|
|
{ .type = PF_STK_ADDR0, .off = _OUT(addr[0]), .cb = snl_attr_get_pfaddr },
|
|
{ .type = PF_STK_ADDR1, .off = _OUT(addr[1]), .cb = snl_attr_get_pfaddr },
|
|
{ .type = PF_STK_PORT0, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 },
|
|
{ .type = PF_STK_PORT1, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 },
|
|
};
|
|
SNL_DECLARE_ATTR_PARSER(skey_parser, nla_p_skey);
|
|
#undef _OUT
|
|
|
|
#define _IN(_field) offsetof(struct genlmsghdr, _field)
|
|
#define _OUT(_field) offsetof(struct pfctl_state, _field)
|
|
static struct snl_attr_parser ap_state[] = {
|
|
{ .type = PF_ST_ID, .off = _OUT(id), .cb = snl_attr_get_uint64 },
|
|
{ .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = snl_attr_get_uint32 },
|
|
{ .type = PF_ST_IFNAME, .off = _OUT(ifname), .cb = snl_attr_store_ifname },
|
|
{ .type = PF_ST_ORIG_IFNAME, .off = _OUT(orig_ifname), .cb = snl_attr_store_ifname },
|
|
{ .type = PF_ST_KEY_WIRE, .off = _OUT(key[0]), .arg = &skey_parser, .cb = snl_attr_get_nested },
|
|
{ .type = PF_ST_KEY_STACK, .off = _OUT(key[1]), .arg = &skey_parser, .cb = snl_attr_get_nested },
|
|
{ .type = PF_ST_PEER_SRC, .off = _OUT(src), .arg = &speer_parser, .cb = snl_attr_get_nested },
|
|
{ .type = PF_ST_PEER_DST, .off = _OUT(dst), .arg = &speer_parser, .cb = snl_attr_get_nested },
|
|
{ .type = PF_ST_RT_ADDR, .off = _OUT(rt_addr), .cb = snl_attr_get_pfaddr },
|
|
{ .type = PF_ST_RULE, .off = _OUT(rule), .cb = snl_attr_get_uint32 },
|
|
{ .type = PF_ST_ANCHOR, .off = _OUT(anchor), .cb = snl_attr_get_uint32 },
|
|
{ .type = PF_ST_NAT_RULE, .off = _OUT(nat_rule), .cb = snl_attr_get_uint32 },
|
|
{ .type = PF_ST_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint32 },
|
|
{ .type = PF_ST_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint32 },
|
|
{ .type = PF_ST_PACKETS0, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 },
|
|
{ .type = PF_ST_PACKETS1, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 },
|
|
{ .type = PF_ST_BYTES0, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 },
|
|
{ .type = PF_ST_BYTES1, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 },
|
|
{ .type = PF_ST_AF, .off = _OUT(key[0].af), .cb = snl_attr_get_uint8 },
|
|
{ .type = PF_ST_PROTO, .off = _OUT(key[0].proto), .cb = snl_attr_get_uint8 },
|
|
{ .type = PF_ST_DIRECTION, .off = _OUT(direction), .cb = snl_attr_get_uint8 },
|
|
{ .type = PF_ST_LOG, .off = _OUT(log), .cb = snl_attr_get_uint8 },
|
|
{ .type = PF_ST_STATE_FLAGS, .off = _OUT(state_flags), .cb = snl_attr_get_uint16 },
|
|
{ .type = PF_ST_SYNC_FLAGS, .off = _OUT(sync_flags), .cb = snl_attr_get_uint8 },
|
|
};
|
|
static struct snl_field_parser fp_state[] = {
|
|
};
|
|
#undef _IN
|
|
#undef _OUT
|
|
SNL_DECLARE_PARSER(state_parser, struct genlmsghdr, fp_state, ap_state);
|
|
|
|
static const struct snl_hdr_parser *all_parsers[] = {
|
|
&state_parser, &skey_parser, &speer_parser,
|
|
&creator_parser,
|
|
};
|
|
|
|
static int
|
|
pfctl_get_states_nl(struct pfctl_state_filter *filter, struct snl_state *ss, pfctl_get_state_fn f, void *arg)
|
|
{
|
|
SNL_VERIFY_PARSERS(all_parsers);
|
|
int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME);
|
|
int ret;
|
|
|
|
struct nlmsghdr *hdr;
|
|
struct snl_writer nw;
|
|
|
|
if (family_id == 0)
|
|
return (ENOTSUP);
|
|
|
|
snl_init_writer(ss, &nw);
|
|
hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETSTATES);
|
|
hdr->nlmsg_flags |= NLM_F_DUMP;
|
|
snl_add_msg_attr_string(&nw, PF_ST_IFNAME, filter->ifname);
|
|
snl_add_msg_attr_u16(&nw, PF_ST_PROTO, filter->proto);
|
|
snl_add_msg_attr_u8(&nw, PF_ST_AF, filter->af);
|
|
snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_ADDR, &filter->addr.v6);
|
|
snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_MASK, &filter->mask.v6);
|
|
|
|
hdr = snl_finalize_msg(&nw);
|
|
if (hdr == NULL)
|
|
return (ENOMEM);
|
|
|
|
uint32_t seq_id = hdr->nlmsg_seq;
|
|
|
|
snl_send_message(ss, hdr);
|
|
|
|
struct snl_errmsg_data e = {};
|
|
while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) {
|
|
struct pfctl_state s;
|
|
bzero(&s, sizeof(s));
|
|
if (!snl_parse_nlmsg(ss, hdr, &state_parser, &s))
|
|
continue;
|
|
|
|
s.key[1].af = s.key[0].af;
|
|
s.key[1].proto = s.key[0].proto;
|
|
|
|
ret = f(&s, arg);
|
|
if (ret != 0)
|
|
return (ret);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_get_states_iter(pfctl_get_state_fn f, void *arg)
|
|
{
|
|
struct pfctl_state_filter filter = {};
|
|
return (pfctl_get_filtered_states_iter(&filter, f, arg));
|
|
}
|
|
|
|
int
|
|
pfctl_get_filtered_states_iter(struct pfctl_state_filter *filter, pfctl_get_state_fn f, void *arg)
|
|
{
|
|
struct snl_state ss = {};
|
|
int error;
|
|
|
|
snl_init(&ss, NETLINK_GENERIC);
|
|
error = pfctl_get_states_nl(filter, &ss, f, arg);
|
|
snl_free(&ss);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
pfctl_append_states(struct pfctl_state *s, void *arg)
|
|
{
|
|
struct pfctl_state *new;
|
|
struct pfctl_states *states = (struct pfctl_states *)arg;
|
|
|
|
new = malloc(sizeof(*s));
|
|
if (new == NULL)
|
|
return (ENOMEM);
|
|
|
|
memcpy(new, s, sizeof(*s));
|
|
|
|
TAILQ_INSERT_TAIL(&states->states, new, entry);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_get_states(int dev __unused, struct pfctl_states *states)
|
|
{
|
|
int ret;
|
|
|
|
bzero(states, sizeof(*states));
|
|
TAILQ_INIT(&states->states);
|
|
|
|
ret = pfctl_get_states_iter(pfctl_append_states, states);
|
|
if (ret != 0) {
|
|
pfctl_free_states(states);
|
|
return (ret);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
pfctl_free_states(struct pfctl_states *states)
|
|
{
|
|
struct pfctl_state *s, *tmp;
|
|
|
|
TAILQ_FOREACH_SAFE(s, &states->states, entry, tmp) {
|
|
free(s);
|
|
}
|
|
|
|
bzero(states, sizeof(*states));
|
|
}
|
|
|
|
static int
|
|
_pfctl_clear_states(int dev, const struct pfctl_kill *kill,
|
|
unsigned int *killed, uint64_t ioctlval)
|
|
{
|
|
nvlist_t *nvl;
|
|
int ret;
|
|
|
|
nvl = nvlist_create(0);
|
|
|
|
pfctl_nv_add_state_cmp(nvl, "cmp", &kill->cmp);
|
|
nvlist_add_number(nvl, "af", kill->af);
|
|
nvlist_add_number(nvl, "proto", kill->proto);
|
|
pfctl_nv_add_rule_addr(nvl, "src", &kill->src);
|
|
pfctl_nv_add_rule_addr(nvl, "dst", &kill->dst);
|
|
pfctl_nv_add_rule_addr(nvl, "rt_addr", &kill->rt_addr);
|
|
nvlist_add_string(nvl, "ifname", kill->ifname);
|
|
nvlist_add_string(nvl, "label", kill->label);
|
|
nvlist_add_bool(nvl, "kill_match", kill->kill_match);
|
|
nvlist_add_bool(nvl, "nat", kill->nat);
|
|
|
|
if ((ret = pfctl_do_ioctl(dev, ioctlval, 1024, &nvl)) != 0)
|
|
return (ret);
|
|
|
|
if (killed)
|
|
*killed = nvlist_get_number(nvl, "killed");
|
|
|
|
nvlist_destroy(nvl);
|
|
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
pfctl_clear_states(int dev, const struct pfctl_kill *kill,
|
|
unsigned int *killed)
|
|
{
|
|
return (_pfctl_clear_states(dev, kill, killed, DIOCCLRSTATESNV));
|
|
}
|
|
|
|
int
|
|
pfctl_kill_states(int dev, const struct pfctl_kill *kill, unsigned int *killed)
|
|
{
|
|
return (_pfctl_clear_states(dev, kill, killed, DIOCKILLSTATESNV));
|
|
}
|
|
|
|
int
|
|
pfctl_clear_rules(int dev, const char *anchorname)
|
|
{
|
|
struct pfioc_trans trans;
|
|
struct pfioc_trans_e transe[2];
|
|
int ret;
|
|
|
|
bzero(&trans, sizeof(trans));
|
|
bzero(&transe, sizeof(transe));
|
|
|
|
transe[0].rs_num = PF_RULESET_SCRUB;
|
|
if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor))
|
|
>= sizeof(transe[0].anchor))
|
|
return (E2BIG);
|
|
|
|
transe[1].rs_num = PF_RULESET_FILTER;
|
|
if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor))
|
|
>= sizeof(transe[1].anchor))
|
|
return (E2BIG);
|
|
|
|
trans.size = 2;
|
|
trans.esize = sizeof(transe[0]);
|
|
trans.array = transe;
|
|
|
|
ret = ioctl(dev, DIOCXBEGIN, &trans);
|
|
if (ret != 0)
|
|
return (ret);
|
|
return ioctl(dev, DIOCXCOMMIT, &trans);
|
|
}
|
|
|
|
int
|
|
pfctl_clear_nat(int dev, const char *anchorname)
|
|
{
|
|
struct pfioc_trans trans;
|
|
struct pfioc_trans_e transe[3];
|
|
int ret;
|
|
|
|
bzero(&trans, sizeof(trans));
|
|
bzero(&transe, sizeof(transe));
|
|
|
|
transe[0].rs_num = PF_RULESET_NAT;
|
|
if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor))
|
|
>= sizeof(transe[0].anchor))
|
|
return (E2BIG);
|
|
|
|
transe[1].rs_num = PF_RULESET_BINAT;
|
|
if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor))
|
|
>= sizeof(transe[0].anchor))
|
|
return (E2BIG);
|
|
|
|
transe[2].rs_num = PF_RULESET_RDR;
|
|
if (strlcpy(transe[2].anchor, anchorname, sizeof(transe[2].anchor))
|
|
>= sizeof(transe[2].anchor))
|
|
return (E2BIG);
|
|
|
|
trans.size = 3;
|
|
trans.esize = sizeof(transe[0]);
|
|
trans.array = transe;
|
|
|
|
ret = ioctl(dev, DIOCXBEGIN, &trans);
|
|
if (ret != 0)
|
|
return (ret);
|
|
return ioctl(dev, DIOCXCOMMIT, &trans);
|
|
}
|
|
int
|
|
pfctl_clear_eth_rules(int dev, const char *anchorname)
|
|
{
|
|
struct pfioc_trans trans;
|
|
struct pfioc_trans_e transe;
|
|
int ret;
|
|
|
|
bzero(&trans, sizeof(trans));
|
|
bzero(&transe, sizeof(transe));
|
|
|
|
transe.rs_num = PF_RULESET_ETH;
|
|
if (strlcpy(transe.anchor, anchorname, sizeof(transe.anchor))
|
|
>= sizeof(transe.anchor))
|
|
return (E2BIG);
|
|
|
|
trans.size = 1;
|
|
trans.esize = sizeof(transe);
|
|
trans.array = &transe;
|
|
|
|
ret = ioctl(dev, DIOCXBEGIN, &trans);
|
|
if (ret != 0)
|
|
return (ret);
|
|
return ioctl(dev, DIOCXCOMMIT, &trans);
|
|
}
|
|
|
|
static int
|
|
pfctl_get_limit(int dev, const int index, uint *limit)
|
|
{
|
|
struct pfioc_limit pl;
|
|
|
|
bzero(&pl, sizeof(pl));
|
|
pl.index = index;
|
|
|
|
if (ioctl(dev, DIOCGETLIMIT, &pl) == -1)
|
|
return (errno);
|
|
|
|
*limit = pl.limit;
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_set_syncookies(int dev, const struct pfctl_syncookies *s)
|
|
{
|
|
struct pfioc_nv nv;
|
|
nvlist_t *nvl;
|
|
int ret;
|
|
uint state_limit;
|
|
uint64_t lim, hi, lo;
|
|
|
|
ret = pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit);
|
|
if (ret != 0)
|
|
return (ret);
|
|
|
|
lim = state_limit;
|
|
hi = lim * s->highwater / 100;
|
|
lo = lim * s->lowwater / 100;
|
|
|
|
if (lo == hi)
|
|
hi++;
|
|
|
|
nvl = nvlist_create(0);
|
|
|
|
nvlist_add_bool(nvl, "enabled", s->mode != PFCTL_SYNCOOKIES_NEVER);
|
|
nvlist_add_bool(nvl, "adaptive", s->mode == PFCTL_SYNCOOKIES_ADAPTIVE);
|
|
nvlist_add_number(nvl, "highwater", hi);
|
|
nvlist_add_number(nvl, "lowwater", lo);
|
|
|
|
nv.data = nvlist_pack(nvl, &nv.len);
|
|
nv.size = nv.len;
|
|
nvlist_destroy(nvl);
|
|
nvl = NULL;
|
|
|
|
ret = ioctl(dev, DIOCSETSYNCOOKIES, &nv);
|
|
|
|
free(nv.data);
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
pfctl_get_syncookies(int dev, struct pfctl_syncookies *s)
|
|
{
|
|
nvlist_t *nvl;
|
|
int ret;
|
|
uint state_limit;
|
|
bool enabled, adaptive;
|
|
|
|
ret = pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit);
|
|
if (ret != 0)
|
|
return (ret);
|
|
|
|
bzero(s, sizeof(*s));
|
|
|
|
nvl = nvlist_create(0);
|
|
|
|
if ((ret = pfctl_do_ioctl(dev, DIOCGETSYNCOOKIES, 256, &nvl)) != 0)
|
|
return (errno);
|
|
|
|
enabled = nvlist_get_bool(nvl, "enabled");
|
|
adaptive = nvlist_get_bool(nvl, "adaptive");
|
|
|
|
if (enabled) {
|
|
if (adaptive)
|
|
s->mode = PFCTL_SYNCOOKIES_ADAPTIVE;
|
|
else
|
|
s->mode = PFCTL_SYNCOOKIES_ALWAYS;
|
|
} else {
|
|
s->mode = PFCTL_SYNCOOKIES_NEVER;
|
|
}
|
|
|
|
s->highwater = nvlist_get_number(nvl, "highwater") * 100 / state_limit;
|
|
s->lowwater = nvlist_get_number(nvl, "lowwater") * 100 / state_limit;
|
|
s->halfopen_states = nvlist_get_number(nvl, "halfopen_states");
|
|
|
|
nvlist_destroy(nvl);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_table_add_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
|
|
*addr, int size, int *nadd, int flags)
|
|
{
|
|
struct pfioc_table io;
|
|
|
|
if (tbl == NULL || size < 0 || (size && addr == NULL)) {
|
|
return (EINVAL);
|
|
}
|
|
bzero(&io, sizeof io);
|
|
io.pfrio_flags = flags;
|
|
io.pfrio_table = *tbl;
|
|
io.pfrio_buffer = addr;
|
|
io.pfrio_esize = sizeof(*addr);
|
|
io.pfrio_size = size;
|
|
|
|
if (ioctl(dev, DIOCRADDADDRS, &io))
|
|
return (errno);
|
|
if (nadd != NULL)
|
|
*nadd = io.pfrio_nadd;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_table_del_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
|
|
*addr, int size, int *ndel, int flags)
|
|
{
|
|
struct pfioc_table io;
|
|
|
|
if (tbl == NULL || size < 0 || (size && addr == NULL)) {
|
|
return (EINVAL);
|
|
}
|
|
bzero(&io, sizeof io);
|
|
io.pfrio_flags = flags;
|
|
io.pfrio_table = *tbl;
|
|
io.pfrio_buffer = addr;
|
|
io.pfrio_esize = sizeof(*addr);
|
|
io.pfrio_size = size;
|
|
|
|
if (ioctl(dev, DIOCRDELADDRS, &io))
|
|
return (errno);
|
|
if (ndel != NULL)
|
|
*ndel = io.pfrio_ndel;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_table_set_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
|
|
*addr, int size, int *size2, int *nadd, int *ndel, int *nchange, int flags)
|
|
{
|
|
struct pfioc_table io;
|
|
|
|
if (tbl == NULL || size < 0 || (size && addr == NULL)) {
|
|
return (EINVAL);
|
|
}
|
|
bzero(&io, sizeof io);
|
|
io.pfrio_flags = flags;
|
|
io.pfrio_table = *tbl;
|
|
io.pfrio_buffer = addr;
|
|
io.pfrio_esize = sizeof(*addr);
|
|
io.pfrio_size = size;
|
|
io.pfrio_size2 = (size2 != NULL) ? *size2 : 0;
|
|
if (ioctl(dev, DIOCRSETADDRS, &io))
|
|
return (-1);
|
|
if (nadd != NULL)
|
|
*nadd = io.pfrio_nadd;
|
|
if (ndel != NULL)
|
|
*ndel = io.pfrio_ndel;
|
|
if (nchange != NULL)
|
|
*nchange = io.pfrio_nchange;
|
|
if (size2 != NULL)
|
|
*size2 = io.pfrio_size2;
|
|
return (0);
|
|
}
|
|
|
|
int pfctl_table_get_addrs(int dev, struct pfr_table *tbl, struct pfr_addr *addr,
|
|
int *size, int flags)
|
|
{
|
|
struct pfioc_table io;
|
|
|
|
if (tbl == NULL || size == NULL || *size < 0 ||
|
|
(*size && addr == NULL)) {
|
|
return (EINVAL);
|
|
}
|
|
bzero(&io, sizeof io);
|
|
io.pfrio_flags = flags;
|
|
io.pfrio_table = *tbl;
|
|
io.pfrio_buffer = addr;
|
|
io.pfrio_esize = sizeof(*addr);
|
|
io.pfrio_size = *size;
|
|
if (ioctl(dev, DIOCRGETADDRS, &io))
|
|
return (-1);
|
|
*size = io.pfrio_size;
|
|
return (0);
|
|
}
|