3079 lines
74 KiB
C
3079 lines
74 KiB
C
/* $OpenBSD: pfctl.c,v 1.278 2008/08/31 20:18:17 jmc Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2001 Daniel Hartmeier
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* Copyright (c) 2002,2003 Henning Brauer
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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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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#define PFIOC_USE_LATEST
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/nv.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/endian.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <net/pfvar.h>
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#include <arpa/inet.h>
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#include <net/altq/altq.h>
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#include <sys/sysctl.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <libpfctl.h>
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#include <limits.h>
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#include <netdb.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "pfctl_parser.h"
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#include "pfctl.h"
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void usage(void);
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int pfctl_enable(int, int);
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int pfctl_disable(int, int);
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int pfctl_clear_stats(int, int);
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int pfctl_get_skip_ifaces(void);
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int pfctl_check_skip_ifaces(char *);
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int pfctl_adjust_skip_ifaces(struct pfctl *);
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int pfctl_clear_interface_flags(int, int);
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int pfctl_flush_eth_rules(int, int, char *);
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int pfctl_flush_rules(int, int, char *);
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int pfctl_flush_nat(int, int, char *);
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int pfctl_clear_altq(int, int);
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int pfctl_clear_src_nodes(int, int);
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int pfctl_clear_iface_states(int, const char *, int);
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void pfctl_addrprefix(char *, struct pf_addr *);
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int pfctl_kill_src_nodes(int, const char *, int);
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int pfctl_net_kill_states(int, const char *, int);
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int pfctl_gateway_kill_states(int, const char *, int);
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int pfctl_label_kill_states(int, const char *, int);
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int pfctl_id_kill_states(int, const char *, int);
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void pfctl_init_options(struct pfctl *);
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int pfctl_load_options(struct pfctl *);
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int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int);
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int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int);
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int pfctl_load_debug(struct pfctl *, unsigned int);
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int pfctl_load_logif(struct pfctl *, char *);
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int pfctl_load_hostid(struct pfctl *, u_int32_t);
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int pfctl_load_syncookies(struct pfctl *, u_int8_t);
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int pfctl_get_pool(int, struct pfctl_pool *, u_int32_t, u_int32_t, int,
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char *);
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void pfctl_print_eth_rule_counters(struct pfctl_eth_rule *, int);
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void pfctl_print_rule_counters(struct pfctl_rule *, int);
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int pfctl_show_eth_rules(int, char *, int, enum pfctl_show, char *, int);
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int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int);
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int pfctl_show_nat(int, char *, int, char *, int);
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int pfctl_show_src_nodes(int, int);
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int pfctl_show_states(int, const char *, int);
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int pfctl_show_status(int, int);
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int pfctl_show_running(int);
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int pfctl_show_timeouts(int, int);
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int pfctl_show_limits(int, int);
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void pfctl_debug(int, u_int32_t, int);
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int pfctl_test_altqsupport(int, int);
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int pfctl_show_anchors(int, int, char *);
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int pfctl_show_eth_anchors(int, int, char *);
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int pfctl_ruleset_trans(struct pfctl *, char *, struct pfctl_anchor *, bool);
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int pfctl_eth_ruleset_trans(struct pfctl *, char *,
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struct pfctl_eth_anchor *);
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int pfctl_load_eth_ruleset(struct pfctl *, char *,
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struct pfctl_eth_ruleset *, int);
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int pfctl_load_eth_rule(struct pfctl *, char *, struct pfctl_eth_rule *,
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int);
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int pfctl_load_ruleset(struct pfctl *, char *,
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struct pfctl_ruleset *, int, int);
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int pfctl_load_rule(struct pfctl *, char *, struct pfctl_rule *, int);
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const char *pfctl_lookup_option(char *, const char * const *);
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static struct pfctl_anchor_global pf_anchors;
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struct pfctl_anchor pf_main_anchor;
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struct pfctl_eth_anchor pf_eth_main_anchor;
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static struct pfr_buffer skip_b;
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static const char *clearopt;
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static char *rulesopt;
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static const char *showopt;
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static const char *debugopt;
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static char *anchoropt;
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static const char *optiopt = NULL;
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static const char *pf_device = "/dev/pf";
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static char *ifaceopt;
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static char *tableopt;
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static const char *tblcmdopt;
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static int src_node_killers;
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static char *src_node_kill[2];
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static int state_killers;
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static char *state_kill[2];
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int loadopt;
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int altqsupport;
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int dev = -1;
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static int first_title = 1;
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static int labels = 0;
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#define INDENT(d, o) do { \
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if (o) { \
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int i; \
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for (i=0; i < d; i++) \
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printf(" "); \
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} \
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} while (0); \
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static const struct {
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const char *name;
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int index;
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} pf_limits[] = {
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{ "states", PF_LIMIT_STATES },
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{ "src-nodes", PF_LIMIT_SRC_NODES },
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{ "frags", PF_LIMIT_FRAGS },
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{ "table-entries", PF_LIMIT_TABLE_ENTRIES },
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{ NULL, 0 }
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};
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struct pf_hint {
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const char *name;
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int timeout;
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};
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static const struct pf_hint pf_hint_normal[] = {
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{ "tcp.first", 2 * 60 },
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{ "tcp.opening", 30 },
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{ "tcp.established", 24 * 60 * 60 },
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{ "tcp.closing", 15 * 60 },
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{ "tcp.finwait", 45 },
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{ "tcp.closed", 90 },
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{ "tcp.tsdiff", 30 },
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{ NULL, 0 }
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};
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static const struct pf_hint pf_hint_satellite[] = {
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{ "tcp.first", 3 * 60 },
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{ "tcp.opening", 30 + 5 },
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{ "tcp.established", 24 * 60 * 60 },
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{ "tcp.closing", 15 * 60 + 5 },
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{ "tcp.finwait", 45 + 5 },
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{ "tcp.closed", 90 + 5 },
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{ "tcp.tsdiff", 60 },
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{ NULL, 0 }
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};
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static const struct pf_hint pf_hint_conservative[] = {
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{ "tcp.first", 60 * 60 },
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{ "tcp.opening", 15 * 60 },
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{ "tcp.established", 5 * 24 * 60 * 60 },
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{ "tcp.closing", 60 * 60 },
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{ "tcp.finwait", 10 * 60 },
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{ "tcp.closed", 3 * 60 },
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{ "tcp.tsdiff", 60 },
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{ NULL, 0 }
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};
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static const struct pf_hint pf_hint_aggressive[] = {
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{ "tcp.first", 30 },
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{ "tcp.opening", 5 },
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{ "tcp.established", 5 * 60 * 60 },
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{ "tcp.closing", 60 },
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{ "tcp.finwait", 30 },
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{ "tcp.closed", 30 },
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{ "tcp.tsdiff", 10 },
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{ NULL, 0 }
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};
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static const struct {
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const char *name;
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const struct pf_hint *hint;
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} pf_hints[] = {
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{ "normal", pf_hint_normal },
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{ "satellite", pf_hint_satellite },
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{ "high-latency", pf_hint_satellite },
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{ "conservative", pf_hint_conservative },
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{ "aggressive", pf_hint_aggressive },
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{ NULL, NULL }
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};
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static const char * const clearopt_list[] = {
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"nat", "queue", "rules", "Sources",
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"states", "info", "Tables", "osfp", "all",
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"ethernet", NULL
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};
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static const char * const showopt_list[] = {
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"ether", "nat", "queue", "rules", "Anchors", "Sources", "states",
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"info", "Interfaces", "labels", "timeouts", "memory", "Tables",
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"osfp", "Running", "all", NULL
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};
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static const char * const tblcmdopt_list[] = {
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"kill", "flush", "add", "delete", "load", "replace", "show",
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"test", "zero", "expire", NULL
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};
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static const char * const debugopt_list[] = {
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"none", "urgent", "misc", "loud", NULL
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};
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static const char * const optiopt_list[] = {
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"none", "basic", "profile", NULL
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};
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void
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usage(void)
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{
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extern char *__progname;
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fprintf(stderr,
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"usage: %s [-AdeghMmNnOPqRrvz] [-a anchor] [-D macro=value] [-F modifier]\n"
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"\t[-f file] [-i interface] [-K host | network]\n"
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"\t[-k host | network | gateway | label | id] [-o level] [-p device]\n"
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"\t[-s modifier] [-t table -T command [address ...]] [-x level]\n",
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__progname);
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exit(1);
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}
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/*
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* Cache protocol number to name translations.
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*
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* Translation is performed a lot e.g., when dumping states and
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* getprotobynumber is incredibly expensive.
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*
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* Note from the getprotobynumber(3) manpage:
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* <quote>
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* These functions use a thread-specific data space; if the data is needed
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* for future use, it should be copied before any subsequent calls overwrite
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* it. Only the Internet protocols are currently understood.
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* </quote>
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*
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* Consequently we only cache the name and strdup it for safety.
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*
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* At the time of writing this comment the last entry in /etc/protocols is:
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* divert 258 DIVERT # Divert pseudo-protocol [non IANA]
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*/
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const char *
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pfctl_proto2name(int proto)
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{
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static const char *pfctl_proto_cache[259];
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struct protoent *p;
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if (proto >= nitems(pfctl_proto_cache)) {
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p = getprotobynumber(proto);
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if (p == NULL) {
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return (NULL);
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}
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return (p->p_name);
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}
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if (pfctl_proto_cache[proto] == NULL) {
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p = getprotobynumber(proto);
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if (p == NULL) {
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return (NULL);
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}
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pfctl_proto_cache[proto] = strdup(p->p_name);
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}
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return (pfctl_proto_cache[proto]);
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}
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int
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pfctl_enable(int dev, int opts)
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{
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if (ioctl(dev, DIOCSTART)) {
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if (errno == EEXIST)
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errx(1, "pf already enabled");
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else if (errno == ESRCH)
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errx(1, "pfil registeration failed");
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else
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err(1, "DIOCSTART");
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}
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if ((opts & PF_OPT_QUIET) == 0)
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fprintf(stderr, "pf enabled\n");
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if (altqsupport && ioctl(dev, DIOCSTARTALTQ))
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if (errno != EEXIST)
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err(1, "DIOCSTARTALTQ");
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return (0);
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}
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int
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pfctl_disable(int dev, int opts)
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{
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if (ioctl(dev, DIOCSTOP)) {
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if (errno == ENOENT)
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errx(1, "pf not enabled");
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else
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err(1, "DIOCSTOP");
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}
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if ((opts & PF_OPT_QUIET) == 0)
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fprintf(stderr, "pf disabled\n");
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if (altqsupport && ioctl(dev, DIOCSTOPALTQ))
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if (errno != ENOENT)
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err(1, "DIOCSTOPALTQ");
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return (0);
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}
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int
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pfctl_clear_stats(int dev, int opts)
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{
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if (ioctl(dev, DIOCCLRSTATUS))
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err(1, "DIOCCLRSTATUS");
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if ((opts & PF_OPT_QUIET) == 0)
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fprintf(stderr, "pf: statistics cleared\n");
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return (0);
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}
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int
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pfctl_get_skip_ifaces(void)
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{
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bzero(&skip_b, sizeof(skip_b));
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skip_b.pfrb_type = PFRB_IFACES;
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for (;;) {
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pfr_buf_grow(&skip_b, skip_b.pfrb_size);
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skip_b.pfrb_size = skip_b.pfrb_msize;
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if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size))
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err(1, "pfi_get_ifaces");
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if (skip_b.pfrb_size <= skip_b.pfrb_msize)
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break;
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}
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return (0);
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}
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int
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pfctl_check_skip_ifaces(char *ifname)
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{
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struct pfi_kif *p;
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struct node_host *h = NULL, *n = NULL;
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PFRB_FOREACH(p, &skip_b) {
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if (!strcmp(ifname, p->pfik_name) &&
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(p->pfik_flags & PFI_IFLAG_SKIP))
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p->pfik_flags &= ~PFI_IFLAG_SKIP;
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if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) {
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if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
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continue;
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for (n = h; n != NULL; n = n->next) {
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if (p->pfik_ifp == NULL)
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continue;
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if (strncmp(p->pfik_name, ifname, IFNAMSIZ))
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continue;
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p->pfik_flags &= ~PFI_IFLAG_SKIP;
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}
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}
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}
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return (0);
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}
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int
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pfctl_adjust_skip_ifaces(struct pfctl *pf)
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{
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struct pfi_kif *p, *pp;
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struct node_host *h = NULL, *n = NULL;
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PFRB_FOREACH(p, &skip_b) {
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if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP))
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continue;
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pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
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if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
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continue;
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for (n = h; n != NULL; n = n->next)
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PFRB_FOREACH(pp, &skip_b) {
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if (pp->pfik_ifp == NULL)
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continue;
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if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ))
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continue;
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if (!(pp->pfik_flags & PFI_IFLAG_SKIP))
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pfctl_set_interface_flags(pf,
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pp->pfik_name, PFI_IFLAG_SKIP, 1);
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if (pp->pfik_flags & PFI_IFLAG_SKIP)
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pp->pfik_flags &= ~PFI_IFLAG_SKIP;
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}
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}
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PFRB_FOREACH(p, &skip_b) {
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if (p->pfik_ifp == NULL || ! (p->pfik_flags & PFI_IFLAG_SKIP))
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continue;
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pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
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}
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return (0);
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}
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int
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pfctl_clear_interface_flags(int dev, int opts)
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{
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struct pfioc_iface pi;
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if ((opts & PF_OPT_NOACTION) == 0) {
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bzero(&pi, sizeof(pi));
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pi.pfiio_flags = PFI_IFLAG_SKIP;
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if (ioctl(dev, DIOCCLRIFFLAG, &pi))
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err(1, "DIOCCLRIFFLAG");
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if ((opts & PF_OPT_QUIET) == 0)
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fprintf(stderr, "pf: interface flags reset\n");
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}
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return (0);
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}
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int
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pfctl_flush_eth_rules(int dev, int opts, char *anchorname)
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{
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int ret;
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ret = pfctl_clear_eth_rules(dev, anchorname);
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if (ret != 0)
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err(1, "pfctl_clear_eth_rules");
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if ((opts & PF_OPT_QUIET) == 0)
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fprintf(stderr, "Ethernet rules cleared\n");
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return (ret);
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}
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int
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pfctl_flush_rules(int dev, int opts, char *anchorname)
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{
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int ret;
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ret = pfctl_clear_rules(dev, anchorname);
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if (ret != 0)
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err(1, "pfctl_clear_rules");
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "rules cleared\n");
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_flush_nat(int dev, int opts, char *anchorname)
|
|
{
|
|
int ret;
|
|
|
|
ret = pfctl_clear_nat(dev, anchorname);
|
|
if (ret != 0)
|
|
err(1, "pfctl_clear_nat");
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "nat cleared\n");
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_clear_altq(int dev, int opts)
|
|
{
|
|
struct pfr_buffer t;
|
|
|
|
if (!altqsupport)
|
|
return (-1);
|
|
memset(&t, 0, sizeof(t));
|
|
t.pfrb_type = PFRB_TRANS;
|
|
if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") ||
|
|
pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
|
|
pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
|
|
err(1, "pfctl_clear_altq");
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "altq cleared\n");
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_clear_src_nodes(int dev, int opts)
|
|
{
|
|
if (ioctl(dev, DIOCCLRSRCNODES))
|
|
err(1, "DIOCCLRSRCNODES");
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "source tracking entries cleared\n");
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_clear_iface_states(int dev, const char *iface, int opts)
|
|
{
|
|
struct pfctl_kill kill;
|
|
unsigned int killed;
|
|
|
|
memset(&kill, 0, sizeof(kill));
|
|
if (iface != NULL && strlcpy(kill.ifname, iface,
|
|
sizeof(kill.ifname)) >= sizeof(kill.ifname))
|
|
errx(1, "invalid interface: %s", iface);
|
|
|
|
if (opts & PF_OPT_KILLMATCH)
|
|
kill.kill_match = true;
|
|
|
|
if (pfctl_clear_states(dev, &kill, &killed))
|
|
err(1, "DIOCCLRSTATES");
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "%d states cleared\n", killed);
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
pfctl_addrprefix(char *addr, struct pf_addr *mask)
|
|
{
|
|
char *p;
|
|
const char *errstr;
|
|
int prefix, ret_ga, q, r;
|
|
struct addrinfo hints, *res;
|
|
|
|
if ((p = strchr(addr, '/')) == NULL)
|
|
return;
|
|
|
|
*p++ = '\0';
|
|
prefix = strtonum(p, 0, 128, &errstr);
|
|
if (errstr)
|
|
errx(1, "prefix is %s: %s", errstr, p);
|
|
|
|
bzero(&hints, sizeof(hints));
|
|
/* prefix only with numeric addresses */
|
|
hints.ai_flags |= AI_NUMERICHOST;
|
|
|
|
if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
|
|
errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
if (res->ai_family == AF_INET && prefix > 32)
|
|
errx(1, "prefix too long for AF_INET");
|
|
else if (res->ai_family == AF_INET6 && prefix > 128)
|
|
errx(1, "prefix too long for AF_INET6");
|
|
|
|
q = prefix >> 3;
|
|
r = prefix & 7;
|
|
switch (res->ai_family) {
|
|
case AF_INET:
|
|
bzero(&mask->v4, sizeof(mask->v4));
|
|
mask->v4.s_addr = htonl((u_int32_t)
|
|
(0xffffffffffULL << (32 - prefix)));
|
|
break;
|
|
case AF_INET6:
|
|
bzero(&mask->v6, sizeof(mask->v6));
|
|
if (q > 0)
|
|
memset((void *)&mask->v6, 0xff, q);
|
|
if (r > 0)
|
|
*((u_char *)&mask->v6 + q) =
|
|
(0xff00 >> r) & 0xff;
|
|
break;
|
|
}
|
|
freeaddrinfo(res);
|
|
}
|
|
|
|
int
|
|
pfctl_kill_src_nodes(int dev, const char *iface, int opts)
|
|
{
|
|
struct pfioc_src_node_kill psnk;
|
|
struct addrinfo *res[2], *resp[2];
|
|
struct sockaddr last_src, last_dst;
|
|
int killed, sources, dests;
|
|
int ret_ga;
|
|
|
|
killed = sources = dests = 0;
|
|
|
|
memset(&psnk, 0, sizeof(psnk));
|
|
memset(&psnk.psnk_src.addr.v.a.mask, 0xff,
|
|
sizeof(psnk.psnk_src.addr.v.a.mask));
|
|
memset(&last_src, 0xff, sizeof(last_src));
|
|
memset(&last_dst, 0xff, sizeof(last_dst));
|
|
|
|
pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask);
|
|
|
|
if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) {
|
|
errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
|
|
/* NOTREACHED */
|
|
}
|
|
for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
|
|
if (resp[0]->ai_addr == NULL)
|
|
continue;
|
|
/* We get lots of duplicates. Catch the easy ones */
|
|
if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
|
|
continue;
|
|
last_src = *(struct sockaddr *)resp[0]->ai_addr;
|
|
|
|
psnk.psnk_af = resp[0]->ai_family;
|
|
sources++;
|
|
|
|
if (psnk.psnk_af == AF_INET)
|
|
psnk.psnk_src.addr.v.a.addr.v4 =
|
|
((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
|
|
else if (psnk.psnk_af == AF_INET6)
|
|
psnk.psnk_src.addr.v.a.addr.v6 =
|
|
((struct sockaddr_in6 *)resp[0]->ai_addr)->
|
|
sin6_addr;
|
|
else
|
|
errx(1, "Unknown address family %d", psnk.psnk_af);
|
|
|
|
if (src_node_killers > 1) {
|
|
dests = 0;
|
|
memset(&psnk.psnk_dst.addr.v.a.mask, 0xff,
|
|
sizeof(psnk.psnk_dst.addr.v.a.mask));
|
|
memset(&last_dst, 0xff, sizeof(last_dst));
|
|
pfctl_addrprefix(src_node_kill[1],
|
|
&psnk.psnk_dst.addr.v.a.mask);
|
|
if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL,
|
|
&res[1]))) {
|
|
errx(1, "getaddrinfo: %s",
|
|
gai_strerror(ret_ga));
|
|
/* NOTREACHED */
|
|
}
|
|
for (resp[1] = res[1]; resp[1];
|
|
resp[1] = resp[1]->ai_next) {
|
|
if (resp[1]->ai_addr == NULL)
|
|
continue;
|
|
if (psnk.psnk_af != resp[1]->ai_family)
|
|
continue;
|
|
|
|
if (memcmp(&last_dst, resp[1]->ai_addr,
|
|
sizeof(last_dst)) == 0)
|
|
continue;
|
|
last_dst = *(struct sockaddr *)resp[1]->ai_addr;
|
|
|
|
dests++;
|
|
|
|
if (psnk.psnk_af == AF_INET)
|
|
psnk.psnk_dst.addr.v.a.addr.v4 =
|
|
((struct sockaddr_in *)resp[1]->
|
|
ai_addr)->sin_addr;
|
|
else if (psnk.psnk_af == AF_INET6)
|
|
psnk.psnk_dst.addr.v.a.addr.v6 =
|
|
((struct sockaddr_in6 *)resp[1]->
|
|
ai_addr)->sin6_addr;
|
|
else
|
|
errx(1, "Unknown address family %d",
|
|
psnk.psnk_af);
|
|
|
|
if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
|
|
err(1, "DIOCKILLSRCNODES");
|
|
killed += psnk.psnk_killed;
|
|
}
|
|
freeaddrinfo(res[1]);
|
|
} else {
|
|
if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
|
|
err(1, "DIOCKILLSRCNODES");
|
|
killed += psnk.psnk_killed;
|
|
}
|
|
}
|
|
|
|
freeaddrinfo(res[0]);
|
|
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "killed %d src nodes from %d sources and %d "
|
|
"destinations\n", killed, sources, dests);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_net_kill_states(int dev, const char *iface, int opts)
|
|
{
|
|
struct pfctl_kill kill;
|
|
struct addrinfo *res[2], *resp[2];
|
|
struct sockaddr last_src, last_dst;
|
|
unsigned int newkilled;
|
|
int killed, sources, dests;
|
|
int ret_ga;
|
|
|
|
killed = sources = dests = 0;
|
|
|
|
memset(&kill, 0, sizeof(kill));
|
|
memset(&kill.src.addr.v.a.mask, 0xff,
|
|
sizeof(kill.src.addr.v.a.mask));
|
|
memset(&last_src, 0xff, sizeof(last_src));
|
|
memset(&last_dst, 0xff, sizeof(last_dst));
|
|
if (iface != NULL && strlcpy(kill.ifname, iface,
|
|
sizeof(kill.ifname)) >= sizeof(kill.ifname))
|
|
errx(1, "invalid interface: %s", iface);
|
|
|
|
pfctl_addrprefix(state_kill[0], &kill.src.addr.v.a.mask);
|
|
|
|
if (opts & PF_OPT_KILLMATCH)
|
|
kill.kill_match = true;
|
|
|
|
if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) {
|
|
errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
|
|
/* NOTREACHED */
|
|
}
|
|
for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
|
|
if (resp[0]->ai_addr == NULL)
|
|
continue;
|
|
/* We get lots of duplicates. Catch the easy ones */
|
|
if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
|
|
continue;
|
|
last_src = *(struct sockaddr *)resp[0]->ai_addr;
|
|
|
|
kill.af = resp[0]->ai_family;
|
|
sources++;
|
|
|
|
if (kill.af == AF_INET)
|
|
kill.src.addr.v.a.addr.v4 =
|
|
((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
|
|
else if (kill.af == AF_INET6)
|
|
kill.src.addr.v.a.addr.v6 =
|
|
((struct sockaddr_in6 *)resp[0]->ai_addr)->
|
|
sin6_addr;
|
|
else
|
|
errx(1, "Unknown address family %d", kill.af);
|
|
|
|
if (state_killers > 1) {
|
|
dests = 0;
|
|
memset(&kill.dst.addr.v.a.mask, 0xff,
|
|
sizeof(kill.dst.addr.v.a.mask));
|
|
memset(&last_dst, 0xff, sizeof(last_dst));
|
|
pfctl_addrprefix(state_kill[1],
|
|
&kill.dst.addr.v.a.mask);
|
|
if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL,
|
|
&res[1]))) {
|
|
errx(1, "getaddrinfo: %s",
|
|
gai_strerror(ret_ga));
|
|
/* NOTREACHED */
|
|
}
|
|
for (resp[1] = res[1]; resp[1];
|
|
resp[1] = resp[1]->ai_next) {
|
|
if (resp[1]->ai_addr == NULL)
|
|
continue;
|
|
if (kill.af != resp[1]->ai_family)
|
|
continue;
|
|
|
|
if (memcmp(&last_dst, resp[1]->ai_addr,
|
|
sizeof(last_dst)) == 0)
|
|
continue;
|
|
last_dst = *(struct sockaddr *)resp[1]->ai_addr;
|
|
|
|
dests++;
|
|
|
|
if (kill.af == AF_INET)
|
|
kill.dst.addr.v.a.addr.v4 =
|
|
((struct sockaddr_in *)resp[1]->
|
|
ai_addr)->sin_addr;
|
|
else if (kill.af == AF_INET6)
|
|
kill.dst.addr.v.a.addr.v6 =
|
|
((struct sockaddr_in6 *)resp[1]->
|
|
ai_addr)->sin6_addr;
|
|
else
|
|
errx(1, "Unknown address family %d",
|
|
kill.af);
|
|
|
|
if (pfctl_kill_states(dev, &kill, &newkilled))
|
|
err(1, "DIOCKILLSTATES");
|
|
killed += newkilled;
|
|
}
|
|
freeaddrinfo(res[1]);
|
|
} else {
|
|
if (pfctl_kill_states(dev, &kill, &newkilled))
|
|
err(1, "DIOCKILLSTATES");
|
|
killed += newkilled;
|
|
}
|
|
}
|
|
|
|
freeaddrinfo(res[0]);
|
|
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "killed %d states from %d sources and %d "
|
|
"destinations\n", killed, sources, dests);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_gateway_kill_states(int dev, const char *iface, int opts)
|
|
{
|
|
struct pfctl_kill kill;
|
|
struct addrinfo *res, *resp;
|
|
struct sockaddr last_src;
|
|
unsigned int newkilled;
|
|
int killed = 0;
|
|
int ret_ga;
|
|
|
|
if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
|
|
warnx("no gateway specified");
|
|
usage();
|
|
}
|
|
|
|
memset(&kill, 0, sizeof(kill));
|
|
memset(&kill.rt_addr.addr.v.a.mask, 0xff,
|
|
sizeof(kill.rt_addr.addr.v.a.mask));
|
|
memset(&last_src, 0xff, sizeof(last_src));
|
|
if (iface != NULL && strlcpy(kill.ifname, iface,
|
|
sizeof(kill.ifname)) >= sizeof(kill.ifname))
|
|
errx(1, "invalid interface: %s", iface);
|
|
|
|
if (opts & PF_OPT_KILLMATCH)
|
|
kill.kill_match = true;
|
|
|
|
pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask);
|
|
|
|
if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, &res))) {
|
|
errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
|
|
/* NOTREACHED */
|
|
}
|
|
for (resp = res; resp; resp = resp->ai_next) {
|
|
if (resp->ai_addr == NULL)
|
|
continue;
|
|
/* We get lots of duplicates. Catch the easy ones */
|
|
if (memcmp(&last_src, resp->ai_addr, sizeof(last_src)) == 0)
|
|
continue;
|
|
last_src = *(struct sockaddr *)resp->ai_addr;
|
|
|
|
kill.af = resp->ai_family;
|
|
|
|
if (kill.af == AF_INET)
|
|
kill.rt_addr.addr.v.a.addr.v4 =
|
|
((struct sockaddr_in *)resp->ai_addr)->sin_addr;
|
|
else if (kill.af == AF_INET6)
|
|
kill.rt_addr.addr.v.a.addr.v6 =
|
|
((struct sockaddr_in6 *)resp->ai_addr)->
|
|
sin6_addr;
|
|
else
|
|
errx(1, "Unknown address family %d", kill.af);
|
|
|
|
if (pfctl_kill_states(dev, &kill, &newkilled))
|
|
err(1, "DIOCKILLSTATES");
|
|
killed += newkilled;
|
|
}
|
|
|
|
freeaddrinfo(res);
|
|
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "killed %d states\n", killed);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_label_kill_states(int dev, const char *iface, int opts)
|
|
{
|
|
struct pfctl_kill kill;
|
|
unsigned int killed;
|
|
|
|
if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
|
|
warnx("no label specified");
|
|
usage();
|
|
}
|
|
memset(&kill, 0, sizeof(kill));
|
|
if (iface != NULL && strlcpy(kill.ifname, iface,
|
|
sizeof(kill.ifname)) >= sizeof(kill.ifname))
|
|
errx(1, "invalid interface: %s", iface);
|
|
|
|
if (opts & PF_OPT_KILLMATCH)
|
|
kill.kill_match = true;
|
|
|
|
if (strlcpy(kill.label, state_kill[1], sizeof(kill.label)) >=
|
|
sizeof(kill.label))
|
|
errx(1, "label too long: %s", state_kill[1]);
|
|
|
|
if (pfctl_kill_states(dev, &kill, &killed))
|
|
err(1, "DIOCKILLSTATES");
|
|
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "killed %d states\n", killed);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_id_kill_states(int dev, const char *iface, int opts)
|
|
{
|
|
struct pfctl_kill kill;
|
|
unsigned int killed;
|
|
|
|
if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
|
|
warnx("no id specified");
|
|
usage();
|
|
}
|
|
|
|
memset(&kill, 0, sizeof(kill));
|
|
|
|
if (opts & PF_OPT_KILLMATCH)
|
|
kill.kill_match = true;
|
|
|
|
if ((sscanf(state_kill[1], "%jx/%x",
|
|
&kill.cmp.id, &kill.cmp.creatorid)) == 2) {
|
|
}
|
|
else if ((sscanf(state_kill[1], "%jx", &kill.cmp.id)) == 1) {
|
|
kill.cmp.creatorid = 0;
|
|
} else {
|
|
warnx("wrong id format specified");
|
|
usage();
|
|
}
|
|
if (kill.cmp.id == 0) {
|
|
warnx("cannot kill id 0");
|
|
usage();
|
|
}
|
|
|
|
if (pfctl_kill_states(dev, &kill, &killed))
|
|
err(1, "DIOCKILLSTATES");
|
|
|
|
if ((opts & PF_OPT_QUIET) == 0)
|
|
fprintf(stderr, "killed %d states\n", killed);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr,
|
|
u_int32_t ticket, int r_action, char *anchorname)
|
|
{
|
|
struct pfioc_pooladdr pp;
|
|
struct pf_pooladdr *pa;
|
|
u_int32_t pnr, mpnr;
|
|
|
|
memset(&pp, 0, sizeof(pp));
|
|
memcpy(pp.anchor, anchorname, sizeof(pp.anchor));
|
|
pp.r_action = r_action;
|
|
pp.r_num = nr;
|
|
pp.ticket = ticket;
|
|
if (ioctl(dev, DIOCGETADDRS, &pp)) {
|
|
warn("DIOCGETADDRS");
|
|
return (-1);
|
|
}
|
|
mpnr = pp.nr;
|
|
TAILQ_INIT(&pool->list);
|
|
for (pnr = 0; pnr < mpnr; ++pnr) {
|
|
pp.nr = pnr;
|
|
if (ioctl(dev, DIOCGETADDR, &pp)) {
|
|
warn("DIOCGETADDR");
|
|
return (-1);
|
|
}
|
|
pa = calloc(1, sizeof(struct pf_pooladdr));
|
|
if (pa == NULL)
|
|
err(1, "calloc");
|
|
bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr));
|
|
TAILQ_INSERT_TAIL(&pool->list, pa, entries);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst)
|
|
{
|
|
struct pf_pooladdr *pa;
|
|
|
|
while ((pa = TAILQ_FIRST(&src->list)) != NULL) {
|
|
TAILQ_REMOVE(&src->list, pa, entries);
|
|
TAILQ_INSERT_TAIL(&dst->list, pa, entries);
|
|
}
|
|
}
|
|
|
|
void
|
|
pfctl_clear_pool(struct pfctl_pool *pool)
|
|
{
|
|
struct pf_pooladdr *pa;
|
|
|
|
while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
|
|
TAILQ_REMOVE(&pool->list, pa, entries);
|
|
free(pa);
|
|
}
|
|
}
|
|
|
|
void
|
|
pfctl_print_eth_rule_counters(struct pfctl_eth_rule *rule, int opts)
|
|
{
|
|
if (opts & PF_OPT_VERBOSE) {
|
|
printf(" [ Evaluations: %-8llu Packets: %-8llu "
|
|
"Bytes: %-10llu]\n",
|
|
(unsigned long long)rule->evaluations,
|
|
(unsigned long long)(rule->packets[0] +
|
|
rule->packets[1]),
|
|
(unsigned long long)(rule->bytes[0] +
|
|
rule->bytes[1]));
|
|
}
|
|
}
|
|
|
|
void
|
|
pfctl_print_rule_counters(struct pfctl_rule *rule, int opts)
|
|
{
|
|
if (opts & PF_OPT_DEBUG) {
|
|
const char *t[PF_SKIP_COUNT] = { "i", "d", "f",
|
|
"p", "sa", "sp", "da", "dp" };
|
|
int i;
|
|
|
|
printf(" [ Skip steps: ");
|
|
for (i = 0; i < PF_SKIP_COUNT; ++i) {
|
|
if (rule->skip[i].nr == rule->nr + 1)
|
|
continue;
|
|
printf("%s=", t[i]);
|
|
if (rule->skip[i].nr == -1)
|
|
printf("end ");
|
|
else
|
|
printf("%u ", rule->skip[i].nr);
|
|
}
|
|
printf("]\n");
|
|
|
|
printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n",
|
|
rule->qname, rule->qid, rule->pqname, rule->pqid);
|
|
}
|
|
if (opts & PF_OPT_VERBOSE) {
|
|
printf(" [ Evaluations: %-8llu Packets: %-8llu "
|
|
"Bytes: %-10llu States: %-6ju]\n",
|
|
(unsigned long long)rule->evaluations,
|
|
(unsigned long long)(rule->packets[0] +
|
|
rule->packets[1]),
|
|
(unsigned long long)(rule->bytes[0] +
|
|
rule->bytes[1]), (uintmax_t)rule->states_cur);
|
|
if (!(opts & PF_OPT_DEBUG))
|
|
printf(" [ Inserted: uid %u pid %u "
|
|
"State Creations: %-6ju]\n",
|
|
(unsigned)rule->cuid, (unsigned)rule->cpid,
|
|
(uintmax_t)rule->states_tot);
|
|
}
|
|
}
|
|
|
|
void
|
|
pfctl_print_title(char *title)
|
|
{
|
|
if (!first_title)
|
|
printf("\n");
|
|
first_title = 0;
|
|
printf("%s\n", title);
|
|
}
|
|
|
|
int
|
|
pfctl_show_eth_rules(int dev, char *path, int opts, enum pfctl_show format,
|
|
char *anchorname, int depth)
|
|
{
|
|
char anchor_call[MAXPATHLEN];
|
|
struct pfctl_eth_rules_info info;
|
|
struct pfctl_eth_rule rule;
|
|
int dotitle = opts & PF_OPT_SHOWALL;
|
|
int len = strlen(path);
|
|
int brace;
|
|
char *p;
|
|
|
|
if (path[0])
|
|
snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
|
|
else
|
|
snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
|
|
|
|
if (pfctl_get_eth_rules_info(dev, &info, path)) {
|
|
warn("DIOCGETETHRULES");
|
|
return (-1);
|
|
}
|
|
for (int nr = 0; nr < info.nr; nr++) {
|
|
brace = 0;
|
|
INDENT(depth, !(opts & PF_OPT_VERBOSE));
|
|
if (pfctl_get_eth_rule(dev, nr, info.ticket, path, &rule,
|
|
opts & PF_OPT_CLRRULECTRS, anchor_call) != 0) {
|
|
warn("DIOCGETETHRULE");
|
|
return (-1);
|
|
}
|
|
if (anchor_call[0] &&
|
|
((((p = strrchr(anchor_call, '_')) != NULL) &&
|
|
(p == anchor_call ||
|
|
*(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
|
|
brace++;
|
|
if ((p = strrchr(anchor_call, '/')) !=
|
|
NULL)
|
|
p++;
|
|
else
|
|
p = &anchor_call[0];
|
|
} else
|
|
p = &anchor_call[0];
|
|
if (dotitle) {
|
|
pfctl_print_title("ETH RULES:");
|
|
dotitle = 0;
|
|
}
|
|
print_eth_rule(&rule, anchor_call,
|
|
opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG));
|
|
if (brace)
|
|
printf(" {\n");
|
|
else
|
|
printf("\n");
|
|
pfctl_print_eth_rule_counters(&rule, opts);
|
|
if (brace) {
|
|
pfctl_show_eth_rules(dev, path, opts, format,
|
|
p, depth + 1);
|
|
INDENT(depth, !(opts & PF_OPT_VERBOSE));
|
|
printf("}\n");
|
|
}
|
|
}
|
|
|
|
path[len] = '\0';
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
|
|
char *anchorname, int depth)
|
|
{
|
|
struct pfctl_rules_info ri;
|
|
struct pfctl_rule rule;
|
|
char anchor_call[MAXPATHLEN];
|
|
u_int32_t nr, header = 0;
|
|
int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
|
|
int numeric = opts & PF_OPT_NUMERIC;
|
|
int len = strlen(path);
|
|
int brace;
|
|
int ret;
|
|
char *p;
|
|
|
|
if (path[0])
|
|
snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
|
|
else
|
|
snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
|
|
|
|
if (opts & PF_OPT_SHOWALL) {
|
|
ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path);
|
|
if (ret != 0) {
|
|
warn("DIOCGETRULES");
|
|
goto error;
|
|
}
|
|
header++;
|
|
}
|
|
ret = pfctl_get_rules_info(dev, &ri, PF_SCRUB, path);
|
|
if (ret != 0) {
|
|
warn("DIOCGETRULES");
|
|
goto error;
|
|
}
|
|
if (opts & PF_OPT_SHOWALL) {
|
|
if (format == PFCTL_SHOW_RULES && (ri.nr > 0 || header))
|
|
pfctl_print_title("FILTER RULES:");
|
|
else if (format == PFCTL_SHOW_LABELS && labels)
|
|
pfctl_print_title("LABEL COUNTERS:");
|
|
}
|
|
|
|
for (nr = 0; nr < ri.nr; ++nr) {
|
|
if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_SCRUB,
|
|
&rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) {
|
|
warn("DIOCGETRULENV");
|
|
goto error;
|
|
}
|
|
|
|
if (pfctl_get_pool(dev, &rule.rpool,
|
|
nr, ri.ticket, PF_SCRUB, path) != 0)
|
|
goto error;
|
|
|
|
switch (format) {
|
|
case PFCTL_SHOW_LABELS:
|
|
break;
|
|
case PFCTL_SHOW_RULES:
|
|
if (rule.label[0] && (opts & PF_OPT_SHOWALL))
|
|
labels = 1;
|
|
print_rule(&rule, anchor_call, rule_numbers, numeric);
|
|
printf("\n");
|
|
pfctl_print_rule_counters(&rule, opts);
|
|
break;
|
|
case PFCTL_SHOW_NOTHING:
|
|
break;
|
|
}
|
|
pfctl_clear_pool(&rule.rpool);
|
|
}
|
|
ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path);
|
|
if (ret != 0) {
|
|
warn("DIOCGETRULES");
|
|
goto error;
|
|
}
|
|
for (nr = 0; nr < ri.nr; ++nr) {
|
|
if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_PASS,
|
|
&rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) {
|
|
warn("DIOCGETRULE");
|
|
goto error;
|
|
}
|
|
|
|
if (pfctl_get_pool(dev, &rule.rpool,
|
|
nr, ri.ticket, PF_PASS, path) != 0)
|
|
goto error;
|
|
|
|
switch (format) {
|
|
case PFCTL_SHOW_LABELS: {
|
|
bool show = false;
|
|
int i = 0;
|
|
|
|
while (rule.label[i][0]) {
|
|
printf("%s ", rule.label[i++]);
|
|
show = true;
|
|
}
|
|
|
|
if (show) {
|
|
printf("%llu %llu %llu %llu"
|
|
" %llu %llu %llu %ju\n",
|
|
(unsigned long long)rule.evaluations,
|
|
(unsigned long long)(rule.packets[0] +
|
|
rule.packets[1]),
|
|
(unsigned long long)(rule.bytes[0] +
|
|
rule.bytes[1]),
|
|
(unsigned long long)rule.packets[0],
|
|
(unsigned long long)rule.bytes[0],
|
|
(unsigned long long)rule.packets[1],
|
|
(unsigned long long)rule.bytes[1],
|
|
(uintmax_t)rule.states_tot);
|
|
}
|
|
break;
|
|
}
|
|
case PFCTL_SHOW_RULES:
|
|
brace = 0;
|
|
if (rule.label[0] && (opts & PF_OPT_SHOWALL))
|
|
labels = 1;
|
|
INDENT(depth, !(opts & PF_OPT_VERBOSE));
|
|
if (anchor_call[0] &&
|
|
((((p = strrchr(anchor_call, '_')) != NULL) &&
|
|
((void *)p == (void *)anchor_call ||
|
|
*(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
|
|
brace++;
|
|
if ((p = strrchr(anchor_call, '/')) !=
|
|
NULL)
|
|
p++;
|
|
else
|
|
p = &anchor_call[0];
|
|
} else
|
|
p = &anchor_call[0];
|
|
|
|
print_rule(&rule, p, rule_numbers, numeric);
|
|
if (brace)
|
|
printf(" {\n");
|
|
else
|
|
printf("\n");
|
|
pfctl_print_rule_counters(&rule, opts);
|
|
if (brace) {
|
|
pfctl_show_rules(dev, path, opts, format,
|
|
p, depth + 1);
|
|
INDENT(depth, !(opts & PF_OPT_VERBOSE));
|
|
printf("}\n");
|
|
}
|
|
break;
|
|
case PFCTL_SHOW_NOTHING:
|
|
break;
|
|
}
|
|
pfctl_clear_pool(&rule.rpool);
|
|
}
|
|
path[len] = '\0';
|
|
return (0);
|
|
|
|
error:
|
|
path[len] = '\0';
|
|
return (-1);
|
|
}
|
|
|
|
int
|
|
pfctl_show_nat(int dev, char *path, int opts, char *anchorname, int depth)
|
|
{
|
|
struct pfctl_rules_info ri;
|
|
struct pfctl_rule rule;
|
|
char anchor_call[MAXPATHLEN];
|
|
u_int32_t nr;
|
|
static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
|
|
int i, dotitle = opts & PF_OPT_SHOWALL;
|
|
int brace, ret;
|
|
int len = strlen(path);
|
|
char *p;
|
|
|
|
if (path[0])
|
|
snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
|
|
else
|
|
snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
ret = pfctl_get_rules_info(dev, &ri, nattype[i], path);
|
|
if (ret != 0) {
|
|
warn("DIOCGETRULES");
|
|
return (-1);
|
|
}
|
|
for (nr = 0; nr < ri.nr; ++nr) {
|
|
brace = 0;
|
|
INDENT(depth, !(opts & PF_OPT_VERBOSE));
|
|
|
|
if (pfctl_get_rule(dev, nr, ri.ticket, path,
|
|
nattype[i], &rule, anchor_call)) {
|
|
warn("DIOCGETRULE");
|
|
return (-1);
|
|
}
|
|
if (pfctl_get_pool(dev, &rule.rpool, nr,
|
|
ri.ticket, nattype[i], path) != 0)
|
|
return (-1);
|
|
|
|
if (anchor_call[0] &&
|
|
((((p = strrchr(anchor_call, '_')) != NULL) &&
|
|
(p == anchor_call ||
|
|
*(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
|
|
brace++;
|
|
if ((p = strrchr(anchor_call, '/')) !=
|
|
NULL)
|
|
p++;
|
|
else
|
|
p = &anchor_call[0];
|
|
} else
|
|
p = &anchor_call[0];
|
|
|
|
if (dotitle) {
|
|
pfctl_print_title("TRANSLATION RULES:");
|
|
dotitle = 0;
|
|
}
|
|
print_rule(&rule, anchor_call,
|
|
opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
|
|
if (brace)
|
|
printf(" {\n");
|
|
else
|
|
printf("\n");
|
|
pfctl_print_rule_counters(&rule, opts);
|
|
pfctl_clear_pool(&rule.rpool);
|
|
if (brace) {
|
|
pfctl_show_nat(dev, path, opts, p, depth + 1);
|
|
INDENT(depth, !(opts & PF_OPT_VERBOSE));
|
|
printf("}\n");
|
|
}
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_show_src_nodes(int dev, int opts)
|
|
{
|
|
struct pfioc_src_nodes psn;
|
|
struct pf_src_node *p;
|
|
char *inbuf = NULL, *newinbuf = NULL;
|
|
unsigned int len = 0;
|
|
int i;
|
|
|
|
memset(&psn, 0, sizeof(psn));
|
|
for (;;) {
|
|
psn.psn_len = len;
|
|
if (len) {
|
|
newinbuf = realloc(inbuf, len);
|
|
if (newinbuf == NULL)
|
|
err(1, "realloc");
|
|
psn.psn_buf = inbuf = newinbuf;
|
|
}
|
|
if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) {
|
|
warn("DIOCGETSRCNODES");
|
|
free(inbuf);
|
|
return (-1);
|
|
}
|
|
if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len)
|
|
break;
|
|
if (len == 0 && psn.psn_len == 0)
|
|
goto done;
|
|
if (len == 0 && psn.psn_len != 0)
|
|
len = psn.psn_len;
|
|
if (psn.psn_len == 0)
|
|
goto done; /* no src_nodes */
|
|
len *= 2;
|
|
}
|
|
p = psn.psn_src_nodes;
|
|
if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL))
|
|
pfctl_print_title("SOURCE TRACKING NODES:");
|
|
for (i = 0; i < psn.psn_len; i += sizeof(*p)) {
|
|
print_src_node(p, opts);
|
|
p++;
|
|
}
|
|
done:
|
|
free(inbuf);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_show_states(int dev, const char *iface, int opts)
|
|
{
|
|
struct pfctl_states states;
|
|
struct pfctl_state *s;
|
|
int dotitle = (opts & PF_OPT_SHOWALL);
|
|
|
|
memset(&states, 0, sizeof(states));
|
|
|
|
if (pfctl_get_states(dev, &states))
|
|
return (-1);
|
|
|
|
TAILQ_FOREACH(s, &states.states, entry) {
|
|
if (iface != NULL && strcmp(s->ifname, iface))
|
|
continue;
|
|
if (dotitle) {
|
|
pfctl_print_title("STATES:");
|
|
dotitle = 0;
|
|
}
|
|
print_state(s, opts);
|
|
}
|
|
|
|
pfctl_free_states(&states);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_show_status(int dev, int opts)
|
|
{
|
|
struct pfctl_status *status;
|
|
struct pfctl_syncookies cookies;
|
|
|
|
if ((status = pfctl_get_status(dev)) == NULL) {
|
|
warn("DIOCGETSTATUS");
|
|
return (-1);
|
|
}
|
|
if (pfctl_get_syncookies(dev, &cookies)) {
|
|
pfctl_free_status(status);
|
|
warn("DIOCGETSYNCOOKIES");
|
|
return (-1);
|
|
}
|
|
if (opts & PF_OPT_SHOWALL)
|
|
pfctl_print_title("INFO:");
|
|
print_status(status, &cookies, opts);
|
|
pfctl_free_status(status);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_show_running(int dev)
|
|
{
|
|
struct pfctl_status *status;
|
|
int running;
|
|
|
|
if ((status = pfctl_get_status(dev)) == NULL) {
|
|
warn("DIOCGETSTATUS");
|
|
return (-1);
|
|
}
|
|
|
|
running = status->running;
|
|
|
|
print_running(status);
|
|
pfctl_free_status(status);
|
|
return (!running);
|
|
}
|
|
|
|
int
|
|
pfctl_show_timeouts(int dev, int opts)
|
|
{
|
|
struct pfioc_tm pt;
|
|
int i;
|
|
|
|
if (opts & PF_OPT_SHOWALL)
|
|
pfctl_print_title("TIMEOUTS:");
|
|
memset(&pt, 0, sizeof(pt));
|
|
for (i = 0; pf_timeouts[i].name; i++) {
|
|
pt.timeout = pf_timeouts[i].timeout;
|
|
if (ioctl(dev, DIOCGETTIMEOUT, &pt))
|
|
err(1, "DIOCGETTIMEOUT");
|
|
printf("%-20s %10d", pf_timeouts[i].name, pt.seconds);
|
|
if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
|
|
pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
|
|
printf(" states");
|
|
else
|
|
printf("s");
|
|
printf("\n");
|
|
}
|
|
return (0);
|
|
|
|
}
|
|
|
|
int
|
|
pfctl_show_limits(int dev, int opts)
|
|
{
|
|
struct pfioc_limit pl;
|
|
int i;
|
|
|
|
if (opts & PF_OPT_SHOWALL)
|
|
pfctl_print_title("LIMITS:");
|
|
memset(&pl, 0, sizeof(pl));
|
|
for (i = 0; pf_limits[i].name; i++) {
|
|
pl.index = pf_limits[i].index;
|
|
if (ioctl(dev, DIOCGETLIMIT, &pl))
|
|
err(1, "DIOCGETLIMIT");
|
|
printf("%-13s ", pf_limits[i].name);
|
|
if (pl.limit == UINT_MAX)
|
|
printf("unlimited\n");
|
|
else
|
|
printf("hard limit %8u\n", pl.limit);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/* callbacks for rule/nat/rdr/addr */
|
|
int
|
|
pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, sa_family_t af)
|
|
{
|
|
struct pf_pooladdr *pa;
|
|
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0) {
|
|
if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr))
|
|
err(1, "DIOCBEGINADDRS");
|
|
}
|
|
|
|
pf->paddr.af = af;
|
|
TAILQ_FOREACH(pa, &p->list, entries) {
|
|
memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr));
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0) {
|
|
if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr))
|
|
err(1, "DIOCADDADDR");
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r,
|
|
const char *anchor_call)
|
|
{
|
|
u_int8_t rs_num;
|
|
struct pfctl_rule *rule;
|
|
struct pfctl_ruleset *rs;
|
|
char *p;
|
|
|
|
rs_num = pf_get_ruleset_number(r->action);
|
|
if (rs_num == PF_RULESET_MAX)
|
|
errx(1, "Invalid rule type %d", r->action);
|
|
|
|
rs = &pf->anchor->ruleset;
|
|
|
|
if (anchor_call[0] && r->anchor == NULL) {
|
|
/*
|
|
* Don't make non-brace anchors part of the main anchor pool.
|
|
*/
|
|
if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
|
|
err(1, "pfctl_append_rule: calloc");
|
|
|
|
pf_init_ruleset(&r->anchor->ruleset);
|
|
r->anchor->ruleset.anchor = r->anchor;
|
|
if (strlcpy(r->anchor->path, anchor_call,
|
|
sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
|
|
errx(1, "pfctl_append_rule: strlcpy");
|
|
if ((p = strrchr(anchor_call, '/')) != NULL) {
|
|
if (!strlen(p))
|
|
err(1, "pfctl_append_rule: bad anchor name %s",
|
|
anchor_call);
|
|
} else
|
|
p = (char *)anchor_call;
|
|
if (strlcpy(r->anchor->name, p,
|
|
sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
|
|
errx(1, "pfctl_append_rule: strlcpy");
|
|
}
|
|
|
|
if ((rule = calloc(1, sizeof(*rule))) == NULL)
|
|
err(1, "calloc");
|
|
bcopy(r, rule, sizeof(*rule));
|
|
TAILQ_INIT(&rule->rpool.list);
|
|
pfctl_move_pool(&r->rpool, &rule->rpool);
|
|
|
|
TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_append_eth_rule(struct pfctl *pf, struct pfctl_eth_rule *r,
|
|
const char *anchor_call)
|
|
{
|
|
struct pfctl_eth_rule *rule;
|
|
struct pfctl_eth_ruleset *rs;
|
|
char *p;
|
|
|
|
rs = &pf->eanchor->ruleset;
|
|
|
|
if (anchor_call[0] && r->anchor == NULL) {
|
|
/*
|
|
* Don't make non-brace anchors part of the main anchor pool.
|
|
*/
|
|
if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
|
|
err(1, "pfctl_append_rule: calloc");
|
|
|
|
pf_init_eth_ruleset(&r->anchor->ruleset);
|
|
r->anchor->ruleset.anchor = r->anchor;
|
|
if (strlcpy(r->anchor->path, anchor_call,
|
|
sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
|
|
errx(1, "pfctl_append_rule: strlcpy");
|
|
if ((p = strrchr(anchor_call, '/')) != NULL) {
|
|
if (!strlen(p))
|
|
err(1, "pfctl_append_eth_rule: bad anchor name %s",
|
|
anchor_call);
|
|
} else
|
|
p = (char *)anchor_call;
|
|
if (strlcpy(r->anchor->name, p,
|
|
sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
|
|
errx(1, "pfctl_append_eth_rule: strlcpy");
|
|
}
|
|
|
|
if ((rule = calloc(1, sizeof(*rule))) == NULL)
|
|
err(1, "calloc");
|
|
bcopy(r, rule, sizeof(*rule));
|
|
|
|
TAILQ_INSERT_TAIL(&rs->rules, rule, entries);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_eth_ruleset_trans(struct pfctl *pf, char *path,
|
|
struct pfctl_eth_anchor *a)
|
|
{
|
|
int osize = pf->trans->pfrb_size;
|
|
|
|
if ((pf->loadopt & PFCTL_FLAG_ETH) != 0) {
|
|
if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
|
|
return (1);
|
|
}
|
|
if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
|
|
return (5);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a, bool do_eth)
|
|
{
|
|
int osize = pf->trans->pfrb_size;
|
|
|
|
if ((pf->loadopt & PFCTL_FLAG_ETH) != 0 && do_eth) {
|
|
if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
|
|
return (1);
|
|
}
|
|
if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
|
|
if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
|
|
pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
|
|
pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
|
|
return (1);
|
|
}
|
|
if (a == pf->astack[0] && ((altqsupport &&
|
|
(pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
|
|
if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
|
|
return (2);
|
|
}
|
|
if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
|
|
if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
|
|
pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
|
|
return (3);
|
|
}
|
|
if (pf->loadopt & PFCTL_FLAG_TABLE)
|
|
if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
|
|
return (4);
|
|
if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
|
|
return (5);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_load_eth_ruleset(struct pfctl *pf, char *path,
|
|
struct pfctl_eth_ruleset *rs, int depth)
|
|
{
|
|
struct pfctl_eth_rule *r;
|
|
int error, len = strlen(path);
|
|
int brace = 0;
|
|
|
|
pf->eanchor = rs->anchor;
|
|
if (path[0])
|
|
snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->eanchor->name);
|
|
else
|
|
snprintf(&path[len], MAXPATHLEN - len, "%s", pf->eanchor->name);
|
|
|
|
if (depth) {
|
|
if (TAILQ_FIRST(&rs->rules) != NULL) {
|
|
brace++;
|
|
if (pf->opts & PF_OPT_VERBOSE)
|
|
printf(" {\n");
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0 &&
|
|
(error = pfctl_eth_ruleset_trans(pf,
|
|
path, rs->anchor))) {
|
|
printf("pfctl_load_eth_rulesets: "
|
|
"pfctl_eth_ruleset_trans %d\n", error);
|
|
goto error;
|
|
}
|
|
} else if (pf->opts & PF_OPT_VERBOSE)
|
|
printf("\n");
|
|
}
|
|
|
|
while ((r = TAILQ_FIRST(&rs->rules)) != NULL) {
|
|
TAILQ_REMOVE(&rs->rules, r, entries);
|
|
|
|
error = pfctl_load_eth_rule(pf, path, r, depth);
|
|
if (error)
|
|
return (error);
|
|
|
|
if (r->anchor) {
|
|
if ((error = pfctl_load_eth_ruleset(pf, path,
|
|
&r->anchor->ruleset, depth + 1)))
|
|
return (error);
|
|
} else if (pf->opts & PF_OPT_VERBOSE)
|
|
printf("\n");
|
|
free(r);
|
|
}
|
|
if (brace && pf->opts & PF_OPT_VERBOSE) {
|
|
INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
|
|
printf("}\n");
|
|
}
|
|
path[len] = '\0';
|
|
|
|
return (0);
|
|
error:
|
|
path[len] = '\0';
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
pfctl_load_eth_rule(struct pfctl *pf, char *path, struct pfctl_eth_rule *r,
|
|
int depth)
|
|
{
|
|
char *name;
|
|
char anchor[PF_ANCHOR_NAME_SIZE];
|
|
int len = strlen(path);
|
|
|
|
if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
|
|
errx(1, "pfctl_load_eth_rule: strlcpy");
|
|
|
|
if (r->anchor) {
|
|
if (r->anchor->match) {
|
|
if (path[0])
|
|
snprintf(&path[len], MAXPATHLEN - len,
|
|
"/%s", r->anchor->name);
|
|
else
|
|
snprintf(&path[len], MAXPATHLEN - len,
|
|
"%s", r->anchor->name);
|
|
name = r->anchor->name;
|
|
} else
|
|
name = r->anchor->path;
|
|
} else
|
|
name = "";
|
|
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0)
|
|
if (pfctl_add_eth_rule(pf->dev, r, anchor, name,
|
|
pf->eth_ticket))
|
|
err(1, "DIOCADDETHRULENV");
|
|
|
|
if (pf->opts & PF_OPT_VERBOSE) {
|
|
INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
|
|
print_eth_rule(r, r->anchor ? r->anchor->name : "",
|
|
pf->opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG));
|
|
}
|
|
|
|
path[len] = '\0';
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs,
|
|
int rs_num, int depth)
|
|
{
|
|
struct pfctl_rule *r;
|
|
int error, len = strlen(path);
|
|
int brace = 0;
|
|
|
|
pf->anchor = rs->anchor;
|
|
|
|
if (path[0])
|
|
snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
|
|
else
|
|
snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
|
|
|
|
if (depth) {
|
|
if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
|
|
brace++;
|
|
if (pf->opts & PF_OPT_VERBOSE)
|
|
printf(" {\n");
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0 &&
|
|
(error = pfctl_ruleset_trans(pf,
|
|
path, rs->anchor, false))) {
|
|
printf("pfctl_load_rulesets: "
|
|
"pfctl_ruleset_trans %d\n", error);
|
|
goto error;
|
|
}
|
|
} else if (pf->opts & PF_OPT_VERBOSE)
|
|
printf("\n");
|
|
|
|
}
|
|
|
|
if (pf->optimize && rs_num == PF_RULESET_FILTER)
|
|
pfctl_optimize_ruleset(pf, rs);
|
|
|
|
while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
|
|
TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
|
|
|
|
for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++)
|
|
expand_label(r->label[i], PF_RULE_LABEL_SIZE, r);
|
|
expand_label(r->tagname, PF_TAG_NAME_SIZE, r);
|
|
expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r);
|
|
|
|
if ((error = pfctl_load_rule(pf, path, r, depth)))
|
|
goto error;
|
|
if (r->anchor) {
|
|
if ((error = pfctl_load_ruleset(pf, path,
|
|
&r->anchor->ruleset, rs_num, depth + 1)))
|
|
goto error;
|
|
} else if (pf->opts & PF_OPT_VERBOSE)
|
|
printf("\n");
|
|
free(r);
|
|
}
|
|
if (brace && pf->opts & PF_OPT_VERBOSE) {
|
|
INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
|
|
printf("}\n");
|
|
}
|
|
path[len] = '\0';
|
|
return (0);
|
|
|
|
error:
|
|
path[len] = '\0';
|
|
return (error);
|
|
|
|
}
|
|
|
|
int
|
|
pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth)
|
|
{
|
|
u_int8_t rs_num = pf_get_ruleset_number(r->action);
|
|
char *name;
|
|
u_int32_t ticket;
|
|
char anchor[PF_ANCHOR_NAME_SIZE];
|
|
int len = strlen(path);
|
|
|
|
/* set up anchor before adding to path for anchor_call */
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0)
|
|
ticket = pfctl_get_ticket(pf->trans, rs_num, path);
|
|
if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
|
|
errx(1, "pfctl_load_rule: strlcpy");
|
|
|
|
if (r->anchor) {
|
|
if (r->anchor->match) {
|
|
if (path[0])
|
|
snprintf(&path[len], MAXPATHLEN - len,
|
|
"/%s", r->anchor->name);
|
|
else
|
|
snprintf(&path[len], MAXPATHLEN - len,
|
|
"%s", r->anchor->name);
|
|
name = r->anchor->name;
|
|
} else
|
|
name = r->anchor->path;
|
|
} else
|
|
name = "";
|
|
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0) {
|
|
if (pfctl_add_pool(pf, &r->rpool, r->af))
|
|
return (1);
|
|
if (pfctl_add_rule(pf->dev, r, anchor, name, ticket,
|
|
pf->paddr.ticket))
|
|
err(1, "DIOCADDRULENV");
|
|
}
|
|
|
|
if (pf->opts & PF_OPT_VERBOSE) {
|
|
INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
|
|
print_rule(r, r->anchor ? r->anchor->name : "",
|
|
pf->opts & PF_OPT_VERBOSE2,
|
|
pf->opts & PF_OPT_NUMERIC);
|
|
}
|
|
path[len] = '\0';
|
|
pfctl_clear_pool(&r->rpool);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
|
|
{
|
|
if (altqsupport &&
|
|
(loadopt & PFCTL_FLAG_ALTQ) != 0) {
|
|
memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0) {
|
|
if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
|
|
if (errno == ENXIO)
|
|
errx(1, "qtype not configured");
|
|
else if (errno == ENODEV)
|
|
errx(1, "%s: driver does not support "
|
|
"altq", a->ifname);
|
|
else
|
|
err(1, "DIOCADDALTQ");
|
|
}
|
|
}
|
|
pfaltq_store(&pf->paltq->altq);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_rules(int dev, char *filename, int opts, int optimize,
|
|
char *anchorname, struct pfr_buffer *trans)
|
|
{
|
|
#define ERR(x) do { warn(x); goto _error; } while(0)
|
|
#define ERRX(x) do { warnx(x); goto _error; } while(0)
|
|
|
|
struct pfr_buffer *t, buf;
|
|
struct pfioc_altq pa;
|
|
struct pfctl pf;
|
|
struct pfctl_ruleset *rs;
|
|
struct pfctl_eth_ruleset *ethrs;
|
|
struct pfr_table trs;
|
|
char *path;
|
|
int osize;
|
|
|
|
RB_INIT(&pf_anchors);
|
|
memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
|
|
pf_init_ruleset(&pf_main_anchor.ruleset);
|
|
pf_main_anchor.ruleset.anchor = &pf_main_anchor;
|
|
|
|
memset(&pf_eth_main_anchor, 0, sizeof(pf_eth_main_anchor));
|
|
pf_init_eth_ruleset(&pf_eth_main_anchor.ruleset);
|
|
pf_eth_main_anchor.ruleset.anchor = &pf_eth_main_anchor;
|
|
|
|
if (trans == NULL) {
|
|
bzero(&buf, sizeof(buf));
|
|
buf.pfrb_type = PFRB_TRANS;
|
|
t = &buf;
|
|
osize = 0;
|
|
} else {
|
|
t = trans;
|
|
osize = t->pfrb_size;
|
|
}
|
|
|
|
memset(&pa, 0, sizeof(pa));
|
|
pa.version = PFIOC_ALTQ_VERSION;
|
|
memset(&pf, 0, sizeof(pf));
|
|
memset(&trs, 0, sizeof(trs));
|
|
if ((path = calloc(1, MAXPATHLEN)) == NULL)
|
|
ERRX("pfctl_rules: calloc");
|
|
if (strlcpy(trs.pfrt_anchor, anchorname,
|
|
sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
|
|
ERRX("pfctl_rules: strlcpy");
|
|
pf.dev = dev;
|
|
pf.opts = opts;
|
|
pf.optimize = optimize;
|
|
pf.loadopt = loadopt;
|
|
|
|
/* non-brace anchor, create without resolving the path */
|
|
if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
|
|
ERRX("pfctl_rules: calloc");
|
|
rs = &pf.anchor->ruleset;
|
|
pf_init_ruleset(rs);
|
|
rs->anchor = pf.anchor;
|
|
if (strlcpy(pf.anchor->path, anchorname,
|
|
sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
|
|
errx(1, "pfctl_rules: strlcpy");
|
|
if (strlcpy(pf.anchor->name, anchorname,
|
|
sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
|
|
errx(1, "pfctl_rules: strlcpy");
|
|
|
|
|
|
pf.astack[0] = pf.anchor;
|
|
pf.asd = 0;
|
|
if (anchorname[0])
|
|
pf.loadopt &= ~PFCTL_FLAG_ALTQ;
|
|
pf.paltq = &pa;
|
|
pf.trans = t;
|
|
pfctl_init_options(&pf);
|
|
|
|
/* Set up ethernet anchor */
|
|
if ((pf.eanchor = calloc(1, sizeof(*pf.eanchor))) == NULL)
|
|
ERRX("pfctl_rules: calloc");
|
|
|
|
if (strlcpy(pf.eanchor->path, anchorname,
|
|
sizeof(pf.eanchor->path)) >= sizeof(pf.eanchor->path))
|
|
errx(1, "pfctl_rules: strlcpy");
|
|
if (strlcpy(pf.eanchor->name, anchorname,
|
|
sizeof(pf.eanchor->name)) >= sizeof(pf.eanchor->name))
|
|
errx(1, "pfctl_rules: strlcpy");
|
|
|
|
ethrs = &pf.eanchor->ruleset;
|
|
pf_init_eth_ruleset(ethrs);
|
|
ethrs->anchor = pf.eanchor;
|
|
pf.eastack[0] = pf.eanchor;
|
|
|
|
if ((opts & PF_OPT_NOACTION) == 0) {
|
|
/*
|
|
* XXX For the time being we need to open transactions for
|
|
* the main ruleset before parsing, because tables are still
|
|
* loaded at parse time.
|
|
*/
|
|
if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor, true))
|
|
ERRX("pfctl_rules");
|
|
if (pf.loadopt & PFCTL_FLAG_ETH)
|
|
pf.eth_ticket = pfctl_get_ticket(t, PF_RULESET_ETH, anchorname);
|
|
if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
|
|
pa.ticket =
|
|
pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
|
|
if (pf.loadopt & PFCTL_FLAG_TABLE)
|
|
pf.astack[0]->ruleset.tticket =
|
|
pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
|
|
}
|
|
|
|
if (parse_config(filename, &pf) < 0) {
|
|
if ((opts & PF_OPT_NOACTION) == 0)
|
|
ERRX("Syntax error in config file: "
|
|
"pf rules not loaded");
|
|
else
|
|
goto _error;
|
|
}
|
|
if (loadopt & PFCTL_FLAG_OPTION)
|
|
pfctl_adjust_skip_ifaces(&pf);
|
|
|
|
if ((pf.loadopt & PFCTL_FLAG_FILTER &&
|
|
(pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
|
|
(pf.loadopt & PFCTL_FLAG_ETH &&
|
|
(pfctl_load_eth_ruleset(&pf, path, ethrs, 0))) ||
|
|
(pf.loadopt & PFCTL_FLAG_NAT &&
|
|
(pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
|
|
pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
|
|
pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
|
|
(pf.loadopt & PFCTL_FLAG_FILTER &&
|
|
pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
|
|
if ((opts & PF_OPT_NOACTION) == 0)
|
|
ERRX("Unable to load rules into kernel");
|
|
else
|
|
goto _error;
|
|
}
|
|
|
|
if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
|
|
if (check_commit_altq(dev, opts) != 0)
|
|
ERRX("errors in altq config");
|
|
|
|
/* process "load anchor" directives */
|
|
if (!anchorname[0])
|
|
if (pfctl_load_anchors(dev, &pf, t) == -1)
|
|
ERRX("load anchors");
|
|
|
|
if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) {
|
|
if (!anchorname[0])
|
|
if (pfctl_load_options(&pf))
|
|
goto _error;
|
|
if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
|
|
ERR("DIOCXCOMMIT");
|
|
}
|
|
free(path);
|
|
return (0);
|
|
|
|
_error:
|
|
if (trans == NULL) { /* main ruleset */
|
|
if ((opts & PF_OPT_NOACTION) == 0)
|
|
if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
|
|
err(1, "DIOCXROLLBACK");
|
|
exit(1);
|
|
} else { /* sub ruleset */
|
|
free(path);
|
|
return (-1);
|
|
}
|
|
|
|
#undef ERR
|
|
#undef ERRX
|
|
}
|
|
|
|
FILE *
|
|
pfctl_fopen(const char *name, const char *mode)
|
|
{
|
|
struct stat st;
|
|
FILE *fp;
|
|
|
|
fp = fopen(name, mode);
|
|
if (fp == NULL)
|
|
return (NULL);
|
|
if (fstat(fileno(fp), &st)) {
|
|
fclose(fp);
|
|
return (NULL);
|
|
}
|
|
if (S_ISDIR(st.st_mode)) {
|
|
fclose(fp);
|
|
errno = EISDIR;
|
|
return (NULL);
|
|
}
|
|
return (fp);
|
|
}
|
|
|
|
void
|
|
pfctl_init_options(struct pfctl *pf)
|
|
{
|
|
|
|
pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
|
|
pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
|
|
pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
|
|
pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
|
|
pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
|
|
pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
|
|
pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
|
|
pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
|
|
pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
|
|
pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
|
|
pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
|
|
pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
|
|
pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
|
|
pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
|
|
pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
|
|
pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
|
|
pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
|
|
pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
|
|
pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
|
|
pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
|
|
|
|
pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
|
|
pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
|
|
pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
|
|
pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT;
|
|
|
|
pf->debug = PF_DEBUG_URGENT;
|
|
|
|
pf->syncookies = false;
|
|
pf->syncookieswat[0] = PF_SYNCOOKIES_LOWATPCT;
|
|
pf->syncookieswat[1] = PF_SYNCOOKIES_HIWATPCT;
|
|
}
|
|
|
|
int
|
|
pfctl_load_options(struct pfctl *pf)
|
|
{
|
|
int i, error = 0;
|
|
|
|
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
|
|
return (0);
|
|
|
|
/* load limits */
|
|
for (i = 0; i < PF_LIMIT_MAX; i++) {
|
|
if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
|
|
continue;
|
|
if (pfctl_load_limit(pf, i, pf->limit[i]))
|
|
error = 1;
|
|
}
|
|
|
|
/*
|
|
* If we've set the limit, but haven't explicitly set adaptive
|
|
* timeouts, do it now with a start of 60% and end of 120%.
|
|
*/
|
|
if (pf->limit_set[PF_LIMIT_STATES] &&
|
|
!pf->timeout_set[PFTM_ADAPTIVE_START] &&
|
|
!pf->timeout_set[PFTM_ADAPTIVE_END]) {
|
|
pf->timeout[PFTM_ADAPTIVE_START] =
|
|
(pf->limit[PF_LIMIT_STATES] / 10) * 6;
|
|
pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
|
|
pf->timeout[PFTM_ADAPTIVE_END] =
|
|
(pf->limit[PF_LIMIT_STATES] / 10) * 12;
|
|
pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
|
|
}
|
|
|
|
/* load timeouts */
|
|
for (i = 0; i < PFTM_MAX; i++) {
|
|
if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
|
|
continue;
|
|
if (pfctl_load_timeout(pf, i, pf->timeout[i]))
|
|
error = 1;
|
|
}
|
|
|
|
/* load debug */
|
|
if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
|
|
if (pfctl_load_debug(pf, pf->debug))
|
|
error = 1;
|
|
|
|
/* load logif */
|
|
if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
|
|
if (pfctl_load_logif(pf, pf->ifname))
|
|
error = 1;
|
|
|
|
/* load hostid */
|
|
if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
|
|
if (pfctl_load_hostid(pf, pf->hostid))
|
|
error = 1;
|
|
|
|
/* load keepcounters */
|
|
if (pfctl_set_keepcounters(pf->dev, pf->keep_counters))
|
|
error = 1;
|
|
|
|
/* load syncookies settings */
|
|
if (pfctl_load_syncookies(pf, pf->syncookies))
|
|
error = 1;
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit)
|
|
{
|
|
int i;
|
|
|
|
|
|
for (i = 0; pf_limits[i].name; i++) {
|
|
if (strcasecmp(opt, pf_limits[i].name) == 0) {
|
|
pf->limit[pf_limits[i].index] = limit;
|
|
pf->limit_set[pf_limits[i].index] = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (pf_limits[i].name == NULL) {
|
|
warnx("Bad pool name.");
|
|
return (1);
|
|
}
|
|
|
|
if (pf->opts & PF_OPT_VERBOSE)
|
|
printf("set limit %s %d\n", opt, limit);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
|
|
{
|
|
struct pfioc_limit pl;
|
|
|
|
memset(&pl, 0, sizeof(pl));
|
|
pl.index = index;
|
|
pl.limit = limit;
|
|
if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) {
|
|
if (errno == EBUSY)
|
|
warnx("Current pool size exceeds requested hard limit");
|
|
else
|
|
warnx("DIOCSETLIMIT");
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
|
|
{
|
|
int i;
|
|
|
|
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
|
|
return (0);
|
|
|
|
for (i = 0; pf_timeouts[i].name; i++) {
|
|
if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
|
|
pf->timeout[pf_timeouts[i].timeout] = seconds;
|
|
pf->timeout_set[pf_timeouts[i].timeout] = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pf_timeouts[i].name == NULL) {
|
|
warnx("Bad timeout name.");
|
|
return (1);
|
|
}
|
|
|
|
|
|
if (pf->opts & PF_OPT_VERBOSE && ! quiet)
|
|
printf("set timeout %s %d\n", opt, seconds);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
|
|
{
|
|
struct pfioc_tm pt;
|
|
|
|
memset(&pt, 0, sizeof(pt));
|
|
pt.timeout = timeout;
|
|
pt.seconds = seconds;
|
|
if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) {
|
|
warnx("DIOCSETTIMEOUT");
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_set_optimization(struct pfctl *pf, const char *opt)
|
|
{
|
|
const struct pf_hint *hint;
|
|
int i, r;
|
|
|
|
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
|
|
return (0);
|
|
|
|
for (i = 0; pf_hints[i].name; i++)
|
|
if (strcasecmp(opt, pf_hints[i].name) == 0)
|
|
break;
|
|
|
|
hint = pf_hints[i].hint;
|
|
if (hint == NULL) {
|
|
warnx("invalid state timeouts optimization");
|
|
return (1);
|
|
}
|
|
|
|
for (i = 0; hint[i].name; i++)
|
|
if ((r = pfctl_set_timeout(pf, hint[i].name,
|
|
hint[i].timeout, 1)))
|
|
return (r);
|
|
|
|
if (pf->opts & PF_OPT_VERBOSE)
|
|
printf("set optimization %s\n", opt);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_set_logif(struct pfctl *pf, char *ifname)
|
|
{
|
|
|
|
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
|
|
return (0);
|
|
|
|
if (!strcmp(ifname, "none")) {
|
|
free(pf->ifname);
|
|
pf->ifname = NULL;
|
|
} else {
|
|
pf->ifname = strdup(ifname);
|
|
if (!pf->ifname)
|
|
errx(1, "pfctl_set_logif: strdup");
|
|
}
|
|
pf->ifname_set = 1;
|
|
|
|
if (pf->opts & PF_OPT_VERBOSE)
|
|
printf("set loginterface %s\n", ifname);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_load_logif(struct pfctl *pf, char *ifname)
|
|
{
|
|
struct pfioc_if pi;
|
|
|
|
memset(&pi, 0, sizeof(pi));
|
|
if (ifname && strlcpy(pi.ifname, ifname,
|
|
sizeof(pi.ifname)) >= sizeof(pi.ifname)) {
|
|
warnx("pfctl_load_logif: strlcpy");
|
|
return (1);
|
|
}
|
|
if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) {
|
|
warnx("DIOCSETSTATUSIF");
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
|
|
{
|
|
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
|
|
return (0);
|
|
|
|
HTONL(hostid);
|
|
|
|
pf->hostid = hostid;
|
|
pf->hostid_set = 1;
|
|
|
|
if (pf->opts & PF_OPT_VERBOSE)
|
|
printf("set hostid 0x%08x\n", ntohl(hostid));
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
|
|
{
|
|
if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
|
|
warnx("DIOCSETHOSTID");
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_load_syncookies(struct pfctl *pf, u_int8_t val)
|
|
{
|
|
struct pfctl_syncookies cookies;
|
|
|
|
bzero(&cookies, sizeof(cookies));
|
|
|
|
cookies.mode = val;
|
|
cookies.lowwater = pf->syncookieswat[0];
|
|
cookies.highwater = pf->syncookieswat[1];
|
|
|
|
if (pfctl_set_syncookies(dev, &cookies)) {
|
|
warnx("DIOCSETSYNCOOKIES");
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_cfg_syncookies(struct pfctl *pf, uint8_t val, struct pfctl_watermarks *w)
|
|
{
|
|
if (val != PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
|
|
warnx("syncookies start/end only apply to adaptive");
|
|
return (1);
|
|
}
|
|
if (val == PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
|
|
if (!w->hi)
|
|
w->hi = PF_SYNCOOKIES_HIWATPCT;
|
|
if (!w->lo)
|
|
w->lo = w->hi / 2;
|
|
if (w->lo >= w->hi) {
|
|
warnx("start must be higher than end");
|
|
return (1);
|
|
}
|
|
pf->syncookieswat[0] = w->lo;
|
|
pf->syncookieswat[1] = w->hi;
|
|
pf->syncookieswat_set = 1;
|
|
}
|
|
|
|
if (pf->opts & PF_OPT_VERBOSE) {
|
|
if (val == PF_SYNCOOKIES_NEVER)
|
|
printf("set syncookies never\n");
|
|
else if (val == PF_SYNCOOKIES_ALWAYS)
|
|
printf("set syncookies always\n");
|
|
else if (val == PF_SYNCOOKIES_ADAPTIVE) {
|
|
if (pf->syncookieswat_set)
|
|
printf("set syncookies adaptive (start %u%%, "
|
|
"end %u%%)\n", pf->syncookieswat[1],
|
|
pf->syncookieswat[0]);
|
|
else
|
|
printf("set syncookies adaptive\n");
|
|
} else { /* cannot happen */
|
|
warnx("king bula ate all syncookies");
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
pf->syncookies = val;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_set_debug(struct pfctl *pf, char *d)
|
|
{
|
|
u_int32_t level;
|
|
|
|
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
|
|
return (0);
|
|
|
|
if (!strcmp(d, "none"))
|
|
pf->debug = PF_DEBUG_NONE;
|
|
else if (!strcmp(d, "urgent"))
|
|
pf->debug = PF_DEBUG_URGENT;
|
|
else if (!strcmp(d, "misc"))
|
|
pf->debug = PF_DEBUG_MISC;
|
|
else if (!strcmp(d, "loud"))
|
|
pf->debug = PF_DEBUG_NOISY;
|
|
else {
|
|
warnx("unknown debug level \"%s\"", d);
|
|
return (-1);
|
|
}
|
|
|
|
pf->debug_set = 1;
|
|
level = pf->debug;
|
|
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0)
|
|
if (ioctl(dev, DIOCSETDEBUG, &level))
|
|
err(1, "DIOCSETDEBUG");
|
|
|
|
if (pf->opts & PF_OPT_VERBOSE)
|
|
printf("set debug %s\n", d);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_load_debug(struct pfctl *pf, unsigned int level)
|
|
{
|
|
if (ioctl(pf->dev, DIOCSETDEBUG, &level)) {
|
|
warnx("DIOCSETDEBUG");
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
|
|
{
|
|
struct pfioc_iface pi;
|
|
struct node_host *h = NULL, *n = NULL;
|
|
|
|
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
|
|
return (0);
|
|
|
|
bzero(&pi, sizeof(pi));
|
|
|
|
pi.pfiio_flags = flags;
|
|
|
|
/* Make sure our cache matches the kernel. If we set or clear the flag
|
|
* for a group this applies to all members. */
|
|
h = ifa_grouplookup(ifname, 0);
|
|
for (n = h; n != NULL; n = n->next)
|
|
pfctl_set_interface_flags(pf, n->ifname, flags, how);
|
|
|
|
if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
|
|
sizeof(pi.pfiio_name))
|
|
errx(1, "pfctl_set_interface_flags: strlcpy");
|
|
|
|
if ((pf->opts & PF_OPT_NOACTION) == 0) {
|
|
if (how == 0) {
|
|
if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
|
|
err(1, "DIOCCLRIFFLAG");
|
|
} else {
|
|
if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
|
|
err(1, "DIOCSETIFFLAG");
|
|
pfctl_check_skip_ifaces(ifname);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
pfctl_debug(int dev, u_int32_t level, int opts)
|
|
{
|
|
if (ioctl(dev, DIOCSETDEBUG, &level))
|
|
err(1, "DIOCSETDEBUG");
|
|
if ((opts & PF_OPT_QUIET) == 0) {
|
|
fprintf(stderr, "debug level set to '");
|
|
switch (level) {
|
|
case PF_DEBUG_NONE:
|
|
fprintf(stderr, "none");
|
|
break;
|
|
case PF_DEBUG_URGENT:
|
|
fprintf(stderr, "urgent");
|
|
break;
|
|
case PF_DEBUG_MISC:
|
|
fprintf(stderr, "misc");
|
|
break;
|
|
case PF_DEBUG_NOISY:
|
|
fprintf(stderr, "loud");
|
|
break;
|
|
default:
|
|
fprintf(stderr, "<invalid>");
|
|
break;
|
|
}
|
|
fprintf(stderr, "'\n");
|
|
}
|
|
}
|
|
|
|
int
|
|
pfctl_test_altqsupport(int dev, int opts)
|
|
{
|
|
struct pfioc_altq pa;
|
|
|
|
pa.version = PFIOC_ALTQ_VERSION;
|
|
if (ioctl(dev, DIOCGETALTQS, &pa)) {
|
|
if (errno == ENODEV) {
|
|
if (opts & PF_OPT_VERBOSE)
|
|
fprintf(stderr, "No ALTQ support in kernel\n"
|
|
"ALTQ related functions disabled\n");
|
|
return (0);
|
|
} else
|
|
err(1, "DIOCGETALTQS");
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
pfctl_show_anchors(int dev, int opts, char *anchorname)
|
|
{
|
|
struct pfioc_ruleset pr;
|
|
u_int32_t mnr, nr;
|
|
|
|
memset(&pr, 0, sizeof(pr));
|
|
memcpy(pr.path, anchorname, sizeof(pr.path));
|
|
if (ioctl(dev, DIOCGETRULESETS, &pr)) {
|
|
if (errno == EINVAL)
|
|
fprintf(stderr, "Anchor '%s' not found.\n",
|
|
anchorname);
|
|
else
|
|
err(1, "DIOCGETRULESETS");
|
|
return (-1);
|
|
}
|
|
mnr = pr.nr;
|
|
for (nr = 0; nr < mnr; ++nr) {
|
|
char sub[MAXPATHLEN];
|
|
|
|
pr.nr = nr;
|
|
if (ioctl(dev, DIOCGETRULESET, &pr))
|
|
err(1, "DIOCGETRULESET");
|
|
if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
|
|
continue;
|
|
sub[0] = 0;
|
|
if (pr.path[0]) {
|
|
strlcat(sub, pr.path, sizeof(sub));
|
|
strlcat(sub, "/", sizeof(sub));
|
|
}
|
|
strlcat(sub, pr.name, sizeof(sub));
|
|
if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
|
|
printf(" %s\n", sub);
|
|
if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub))
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pfctl_show_eth_anchors(int dev, int opts, char *anchorname)
|
|
{
|
|
struct pfctl_eth_rulesets_info ri;
|
|
struct pfctl_eth_ruleset_info rs;
|
|
int ret;
|
|
|
|
if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, anchorname)) != 0) {
|
|
if (ret == ENOENT)
|
|
fprintf(stderr, "Anchor '%s' not found.\n",
|
|
anchorname);
|
|
else
|
|
err(1, "DIOCGETETHRULESETS");
|
|
return (-1);
|
|
}
|
|
|
|
for (int nr = 0; nr < ri.nr; nr++) {
|
|
char sub[MAXPATHLEN];
|
|
|
|
if (pfctl_get_eth_ruleset(dev, anchorname, nr, &rs) != 0)
|
|
err(1, "DIOCGETETHRULESET");
|
|
|
|
if (!strcmp(rs.name, PF_RESERVED_ANCHOR))
|
|
continue;
|
|
sub[0] = 0;
|
|
if (rs.path[0]) {
|
|
strlcat(sub, rs.path, sizeof(sub));
|
|
strlcat(sub, "/", sizeof(sub));
|
|
}
|
|
strlcat(sub, rs.name, sizeof(sub));
|
|
if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
|
|
printf(" %s\n", sub);
|
|
if ((opts & PF_OPT_VERBOSE) && pfctl_show_eth_anchors(dev, opts, sub))
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
const char *
|
|
pfctl_lookup_option(char *cmd, const char * const *list)
|
|
{
|
|
if (cmd != NULL && *cmd)
|
|
for (; *list; list++)
|
|
if (!strncmp(cmd, *list, strlen(cmd)))
|
|
return (*list);
|
|
return (NULL);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int error = 0;
|
|
int ch;
|
|
int mode = O_RDONLY;
|
|
int opts = 0;
|
|
int optimize = PF_OPTIMIZE_BASIC;
|
|
char anchorname[MAXPATHLEN];
|
|
char *path;
|
|
|
|
if (argc < 2)
|
|
usage();
|
|
|
|
while ((ch = getopt(argc, argv,
|
|
"a:AdD:eqf:F:ghi:k:K:mMnNOo:Pp:rRs:t:T:vx:z")) != -1) {
|
|
switch (ch) {
|
|
case 'a':
|
|
anchoropt = optarg;
|
|
break;
|
|
case 'd':
|
|
opts |= PF_OPT_DISABLE;
|
|
mode = O_RDWR;
|
|
break;
|
|
case 'D':
|
|
if (pfctl_cmdline_symset(optarg) < 0)
|
|
warnx("could not parse macro definition %s",
|
|
optarg);
|
|
break;
|
|
case 'e':
|
|
opts |= PF_OPT_ENABLE;
|
|
mode = O_RDWR;
|
|
break;
|
|
case 'q':
|
|
opts |= PF_OPT_QUIET;
|
|
break;
|
|
case 'F':
|
|
clearopt = pfctl_lookup_option(optarg, clearopt_list);
|
|
if (clearopt == NULL) {
|
|
warnx("Unknown flush modifier '%s'", optarg);
|
|
usage();
|
|
}
|
|
mode = O_RDWR;
|
|
break;
|
|
case 'i':
|
|
ifaceopt = optarg;
|
|
break;
|
|
case 'k':
|
|
if (state_killers >= 2) {
|
|
warnx("can only specify -k twice");
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
state_kill[state_killers++] = optarg;
|
|
mode = O_RDWR;
|
|
break;
|
|
case 'K':
|
|
if (src_node_killers >= 2) {
|
|
warnx("can only specify -K twice");
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
src_node_kill[src_node_killers++] = optarg;
|
|
mode = O_RDWR;
|
|
break;
|
|
case 'm':
|
|
opts |= PF_OPT_MERGE;
|
|
break;
|
|
case 'M':
|
|
opts |= PF_OPT_KILLMATCH;
|
|
break;
|
|
case 'n':
|
|
opts |= PF_OPT_NOACTION;
|
|
break;
|
|
case 'N':
|
|
loadopt |= PFCTL_FLAG_NAT;
|
|
break;
|
|
case 'r':
|
|
opts |= PF_OPT_USEDNS;
|
|
break;
|
|
case 'f':
|
|
rulesopt = optarg;
|
|
mode = O_RDWR;
|
|
break;
|
|
case 'g':
|
|
opts |= PF_OPT_DEBUG;
|
|
break;
|
|
case 'A':
|
|
loadopt |= PFCTL_FLAG_ALTQ;
|
|
break;
|
|
case 'R':
|
|
loadopt |= PFCTL_FLAG_FILTER;
|
|
break;
|
|
case 'o':
|
|
optiopt = pfctl_lookup_option(optarg, optiopt_list);
|
|
if (optiopt == NULL) {
|
|
warnx("Unknown optimization '%s'", optarg);
|
|
usage();
|
|
}
|
|
opts |= PF_OPT_OPTIMIZE;
|
|
break;
|
|
case 'O':
|
|
loadopt |= PFCTL_FLAG_OPTION;
|
|
break;
|
|
case 'p':
|
|
pf_device = optarg;
|
|
break;
|
|
case 'P':
|
|
opts |= PF_OPT_NUMERIC;
|
|
break;
|
|
case 's':
|
|
showopt = pfctl_lookup_option(optarg, showopt_list);
|
|
if (showopt == NULL) {
|
|
warnx("Unknown show modifier '%s'", optarg);
|
|
usage();
|
|
}
|
|
break;
|
|
case 't':
|
|
tableopt = optarg;
|
|
break;
|
|
case 'T':
|
|
tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
|
|
if (tblcmdopt == NULL) {
|
|
warnx("Unknown table command '%s'", optarg);
|
|
usage();
|
|
}
|
|
break;
|
|
case 'v':
|
|
if (opts & PF_OPT_VERBOSE)
|
|
opts |= PF_OPT_VERBOSE2;
|
|
opts |= PF_OPT_VERBOSE;
|
|
break;
|
|
case 'x':
|
|
debugopt = pfctl_lookup_option(optarg, debugopt_list);
|
|
if (debugopt == NULL) {
|
|
warnx("Unknown debug level '%s'", optarg);
|
|
usage();
|
|
}
|
|
mode = O_RDWR;
|
|
break;
|
|
case 'z':
|
|
opts |= PF_OPT_CLRRULECTRS;
|
|
mode = O_RDWR;
|
|
break;
|
|
case 'h':
|
|
/* FALLTHROUGH */
|
|
default:
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
|
|
if (tblcmdopt != NULL) {
|
|
argc -= optind;
|
|
argv += optind;
|
|
ch = *tblcmdopt;
|
|
if (ch == 'l') {
|
|
loadopt |= PFCTL_FLAG_TABLE;
|
|
tblcmdopt = NULL;
|
|
} else
|
|
mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY;
|
|
} else if (argc != optind) {
|
|
warnx("unknown command line argument: %s ...", argv[optind]);
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
if (loadopt == 0)
|
|
loadopt = ~0;
|
|
|
|
if ((path = calloc(1, MAXPATHLEN)) == NULL)
|
|
errx(1, "pfctl: calloc");
|
|
memset(anchorname, 0, sizeof(anchorname));
|
|
if (anchoropt != NULL) {
|
|
int len = strlen(anchoropt);
|
|
|
|
if (anchoropt[len - 1] == '*') {
|
|
if (len >= 2 && anchoropt[len - 2] == '/')
|
|
anchoropt[len - 2] = '\0';
|
|
else
|
|
anchoropt[len - 1] = '\0';
|
|
opts |= PF_OPT_RECURSE;
|
|
}
|
|
if (strlcpy(anchorname, anchoropt,
|
|
sizeof(anchorname)) >= sizeof(anchorname))
|
|
errx(1, "anchor name '%s' too long",
|
|
anchoropt);
|
|
loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE|PFCTL_FLAG_ETH;
|
|
}
|
|
|
|
if ((opts & PF_OPT_NOACTION) == 0) {
|
|
dev = open(pf_device, mode);
|
|
if (dev == -1)
|
|
err(1, "%s", pf_device);
|
|
altqsupport = pfctl_test_altqsupport(dev, opts);
|
|
} else {
|
|
dev = open(pf_device, O_RDONLY);
|
|
if (dev >= 0)
|
|
opts |= PF_OPT_DUMMYACTION;
|
|
/* turn off options */
|
|
opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
|
|
clearopt = showopt = debugopt = NULL;
|
|
#if !defined(ENABLE_ALTQ)
|
|
altqsupport = 0;
|
|
#else
|
|
altqsupport = 1;
|
|
#endif
|
|
}
|
|
|
|
if (opts & PF_OPT_DISABLE)
|
|
if (pfctl_disable(dev, opts))
|
|
error = 1;
|
|
|
|
if (showopt != NULL) {
|
|
switch (*showopt) {
|
|
case 'A':
|
|
pfctl_show_anchors(dev, opts, anchorname);
|
|
pfctl_show_eth_anchors(dev, opts, anchorname);
|
|
break;
|
|
case 'r':
|
|
pfctl_load_fingerprints(dev, opts);
|
|
pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
|
|
anchorname, 0);
|
|
break;
|
|
case 'l':
|
|
pfctl_load_fingerprints(dev, opts);
|
|
pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
|
|
anchorname, 0);
|
|
break;
|
|
case 'n':
|
|
pfctl_load_fingerprints(dev, opts);
|
|
pfctl_show_nat(dev, path, opts, anchorname, 0);
|
|
break;
|
|
case 'q':
|
|
pfctl_show_altq(dev, ifaceopt, opts,
|
|
opts & PF_OPT_VERBOSE2);
|
|
break;
|
|
case 's':
|
|
pfctl_show_states(dev, ifaceopt, opts);
|
|
break;
|
|
case 'S':
|
|
pfctl_show_src_nodes(dev, opts);
|
|
break;
|
|
case 'i':
|
|
pfctl_show_status(dev, opts);
|
|
break;
|
|
case 'R':
|
|
error = pfctl_show_running(dev);
|
|
break;
|
|
case 't':
|
|
pfctl_show_timeouts(dev, opts);
|
|
break;
|
|
case 'm':
|
|
pfctl_show_limits(dev, opts);
|
|
break;
|
|
case 'e':
|
|
pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0);
|
|
break;
|
|
case 'a':
|
|
opts |= PF_OPT_SHOWALL;
|
|
pfctl_load_fingerprints(dev, opts);
|
|
|
|
pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0);
|
|
|
|
pfctl_show_nat(dev, path, opts, anchorname, 0);
|
|
pfctl_show_rules(dev, path, opts, 0, anchorname, 0);
|
|
pfctl_show_altq(dev, ifaceopt, opts, 0);
|
|
pfctl_show_states(dev, ifaceopt, opts);
|
|
pfctl_show_src_nodes(dev, opts);
|
|
pfctl_show_status(dev, opts);
|
|
pfctl_show_rules(dev, path, opts, 1, anchorname, 0);
|
|
pfctl_show_timeouts(dev, opts);
|
|
pfctl_show_limits(dev, opts);
|
|
pfctl_show_tables(anchorname, opts);
|
|
pfctl_show_fingerprints(opts);
|
|
break;
|
|
case 'T':
|
|
pfctl_show_tables(anchorname, opts);
|
|
break;
|
|
case 'o':
|
|
pfctl_load_fingerprints(dev, opts);
|
|
pfctl_show_fingerprints(opts);
|
|
break;
|
|
case 'I':
|
|
pfctl_show_ifaces(ifaceopt, opts);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL) {
|
|
pfctl_show_eth_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
|
|
anchorname, 0);
|
|
pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
|
|
anchorname, 0);
|
|
}
|
|
|
|
if (clearopt != NULL) {
|
|
if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
|
|
errx(1, "anchor names beginning with '_' cannot "
|
|
"be modified from the command line");
|
|
|
|
switch (*clearopt) {
|
|
case 'e':
|
|
pfctl_flush_eth_rules(dev, opts, anchorname);
|
|
break;
|
|
case 'r':
|
|
pfctl_flush_rules(dev, opts, anchorname);
|
|
break;
|
|
case 'n':
|
|
pfctl_flush_nat(dev, opts, anchorname);
|
|
break;
|
|
case 'q':
|
|
pfctl_clear_altq(dev, opts);
|
|
break;
|
|
case 's':
|
|
pfctl_clear_iface_states(dev, ifaceopt, opts);
|
|
break;
|
|
case 'S':
|
|
pfctl_clear_src_nodes(dev, opts);
|
|
break;
|
|
case 'i':
|
|
pfctl_clear_stats(dev, opts);
|
|
break;
|
|
case 'a':
|
|
pfctl_flush_eth_rules(dev, opts, anchorname);
|
|
pfctl_flush_rules(dev, opts, anchorname);
|
|
pfctl_flush_nat(dev, opts, anchorname);
|
|
pfctl_clear_tables(anchorname, opts);
|
|
if (!*anchorname) {
|
|
pfctl_clear_altq(dev, opts);
|
|
pfctl_clear_iface_states(dev, ifaceopt, opts);
|
|
pfctl_clear_src_nodes(dev, opts);
|
|
pfctl_clear_stats(dev, opts);
|
|
pfctl_clear_fingerprints(dev, opts);
|
|
pfctl_clear_interface_flags(dev, opts);
|
|
}
|
|
break;
|
|
case 'o':
|
|
pfctl_clear_fingerprints(dev, opts);
|
|
break;
|
|
case 'T':
|
|
pfctl_clear_tables(anchorname, opts);
|
|
break;
|
|
}
|
|
}
|
|
if (state_killers) {
|
|
if (!strcmp(state_kill[0], "label"))
|
|
pfctl_label_kill_states(dev, ifaceopt, opts);
|
|
else if (!strcmp(state_kill[0], "id"))
|
|
pfctl_id_kill_states(dev, ifaceopt, opts);
|
|
else if (!strcmp(state_kill[0], "gateway"))
|
|
pfctl_gateway_kill_states(dev, ifaceopt, opts);
|
|
else
|
|
pfctl_net_kill_states(dev, ifaceopt, opts);
|
|
}
|
|
|
|
if (src_node_killers)
|
|
pfctl_kill_src_nodes(dev, ifaceopt, opts);
|
|
|
|
if (tblcmdopt != NULL) {
|
|
error = pfctl_command_tables(argc, argv, tableopt,
|
|
tblcmdopt, rulesopt, anchorname, opts);
|
|
rulesopt = NULL;
|
|
}
|
|
if (optiopt != NULL) {
|
|
switch (*optiopt) {
|
|
case 'n':
|
|
optimize = 0;
|
|
break;
|
|
case 'b':
|
|
optimize |= PF_OPTIMIZE_BASIC;
|
|
break;
|
|
case 'o':
|
|
case 'p':
|
|
optimize |= PF_OPTIMIZE_PROFILE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
|
|
!anchorname[0] && !(opts & PF_OPT_NOACTION))
|
|
if (pfctl_get_skip_ifaces())
|
|
error = 1;
|
|
|
|
if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) &&
|
|
!anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
|
|
if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
|
|
error = 1;
|
|
|
|
if (rulesopt != NULL) {
|
|
if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
|
|
errx(1, "anchor names beginning with '_' cannot "
|
|
"be modified from the command line");
|
|
if (pfctl_rules(dev, rulesopt, opts, optimize,
|
|
anchorname, NULL))
|
|
error = 1;
|
|
else if (!(opts & PF_OPT_NOACTION) &&
|
|
(loadopt & PFCTL_FLAG_TABLE))
|
|
warn_namespace_collision(NULL);
|
|
}
|
|
|
|
if (opts & PF_OPT_ENABLE)
|
|
if (pfctl_enable(dev, opts))
|
|
error = 1;
|
|
|
|
if (debugopt != NULL) {
|
|
switch (*debugopt) {
|
|
case 'n':
|
|
pfctl_debug(dev, PF_DEBUG_NONE, opts);
|
|
break;
|
|
case 'u':
|
|
pfctl_debug(dev, PF_DEBUG_URGENT, opts);
|
|
break;
|
|
case 'm':
|
|
pfctl_debug(dev, PF_DEBUG_MISC, opts);
|
|
break;
|
|
case 'l':
|
|
pfctl_debug(dev, PF_DEBUG_NOISY, opts);
|
|
break;
|
|
}
|
|
}
|
|
|
|
exit(error);
|
|
}
|