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freebsd-dev/contrib/pf/pfctl/pfctl.c
Max Laier 0baf7c8675 Resolve conflicts created during the import of pf 3.7 Some features are 
missing and will be implemented in a second step.  This is functional as is.

Tested by:	freebsd-pf, pfsense.org
Obtained from:	OpenBSD
2005-05-03 16:55:20 +00:00

1913 lines
44 KiB
C
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/* $OpenBSD: pfctl.c,v 1.234 2005/03/07 13:52:50 henning Exp $ */
/*
* Copyright (c) 2001 Daniel Hartmeier
* Copyright (c) 2002,2003 Henning Brauer
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <net/if.h>
#include <netinet/in.h>
#include <net/pfvar.h>
#include <arpa/inet.h>
#include <altq/altq.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "pfctl_parser.h"
#include "pfctl.h"
#ifdef __FreeBSD__
#define HTONL(x) (x) = htonl((__uint32_t)(x))
#endif
void usage(void);
int pfctl_enable(int, int);
int pfctl_disable(int, int);
int pfctl_clear_stats(int, int);
int pfctl_clear_interface_flags(int, int);
int pfctl_clear_rules(int, int, char *);
int pfctl_clear_nat(int, int, char *);
int pfctl_clear_altq(int, int);
int pfctl_clear_src_nodes(int, int);
int pfctl_clear_states(int, const char *, int);
int pfctl_kill_states(int, const char *, int);
void pfctl_init_options(struct pfctl *);
int pfctl_load_options(struct pfctl *);
int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int);
int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int);
int pfctl_load_debug(struct pfctl *, unsigned int);
int pfctl_load_logif(struct pfctl *, char *);
int pfctl_load_hostid(struct pfctl *, unsigned int);
int pfctl_get_pool(int, struct pf_pool *, u_int32_t, u_int32_t, int,
char *);
void pfctl_print_rule_counters(struct pf_rule *, int);
int pfctl_show_rules(int, int, int, char *);
int pfctl_show_nat(int, int, char *);
int pfctl_show_src_nodes(int, int);
int pfctl_show_states(int, const char *, int);
int pfctl_show_status(int, int);
int pfctl_show_timeouts(int, int);
int pfctl_show_limits(int, int);
void pfctl_debug(int, u_int32_t, int);
int pfctl_clear_rule_counters(int, int);
int pfctl_test_altqsupport(int, int);
int pfctl_show_anchors(int, int, char *);
const char *pfctl_lookup_option(char *, const char **);
const char *clearopt;
char *rulesopt;
const char *showopt;
const char *debugopt;
char *anchoropt;
char *pf_device = "/dev/pf";
char *ifaceopt;
char *tableopt;
const char *tblcmdopt;
int state_killers;
char *state_kill[2];
int loadopt;
int altqsupport;
int dev = -1;
int first_title = 1;
int labels = 0;
const char *infile;
static const struct {
const char *name;
int index;
} pf_limits[] = {
{ "states", PF_LIMIT_STATES },
{ "src-nodes", PF_LIMIT_SRC_NODES },
{ "frags", PF_LIMIT_FRAGS },
{ NULL, 0 }
};
struct pf_hint {
const char *name;
int timeout;
};
static const struct pf_hint pf_hint_normal[] = {
{ "tcp.first", 2 * 60 },
{ "tcp.opening", 30 },
{ "tcp.established", 24 * 60 * 60 },
{ "tcp.closing", 15 * 60 },
{ "tcp.finwait", 45 },
{ "tcp.closed", 90 },
{ "tcp.tsdiff", 30 },
{ NULL, 0 }
};
static const struct pf_hint pf_hint_satellite[] = {
{ "tcp.first", 3 * 60 },
{ "tcp.opening", 30 + 5 },
{ "tcp.established", 24 * 60 * 60 },
{ "tcp.closing", 15 * 60 + 5 },
{ "tcp.finwait", 45 + 5 },
{ "tcp.closed", 90 + 5 },
{ "tcp.tsdiff", 60 },
{ NULL, 0 }
};
static const struct pf_hint pf_hint_conservative[] = {
{ "tcp.first", 60 * 60 },
{ "tcp.opening", 15 * 60 },
{ "tcp.established", 5 * 24 * 60 * 60 },
{ "tcp.closing", 60 * 60 },
{ "tcp.finwait", 10 * 60 },
{ "tcp.closed", 3 * 60 },
{ "tcp.tsdiff", 60 },
{ NULL, 0 }
};
static const struct pf_hint pf_hint_aggressive[] = {
{ "tcp.first", 30 },
{ "tcp.opening", 5 },
{ "tcp.established", 5 * 60 * 60 },
{ "tcp.closing", 60 },
{ "tcp.finwait", 30 },
{ "tcp.closed", 30 },
{ "tcp.tsdiff", 10 },
{ NULL, 0 }
};
static const struct {
const char *name;
const struct pf_hint *hint;
} pf_hints[] = {
{ "normal", pf_hint_normal },
{ "satellite", pf_hint_satellite },
{ "high-latency", pf_hint_satellite },
{ "conservative", pf_hint_conservative },
{ "aggressive", pf_hint_aggressive },
{ NULL, NULL }
};
static const char *clearopt_list[] = {
"nat", "queue", "rules", "Sources",
"state", "info", "Tables", "osfp", "all", NULL
};
static const char *showopt_list[] = {
"nat", "queue", "rules", "Anchors", "Sources", "state", "info",
"Interfaces", "labels", "timeouts", "memory", "Tables", "osfp",
"all", NULL
};
static const char *tblcmdopt_list[] = {
"kill", "flush", "add", "delete", "load", "replace", "show",
"test", "zero", NULL
};
static const char *debugopt_list[] = {
"none", "urgent", "misc", "loud", NULL
};
void
usage(void)
{
extern char *__progname;
fprintf(stderr, "usage: %s [-AdeghmNnOoqRrvz] ", __progname);
fprintf(stderr, "[-a anchor] [-D macro=value] [-F modifier]\n");
fprintf(stderr, " ");
fprintf(stderr, "[-f file] [-i interface] [-k host] ");
fprintf(stderr, "[-p device] [-s modifier]\n");
fprintf(stderr, " ");
fprintf(stderr, "[-t table -T command [address ...]] ");
fprintf(stderr, "[-x level]\n");
exit(1);
}
int
pfctl_enable(int dev, int opts)
{
if (ioctl(dev, DIOCSTART)) {
if (errno == EEXIST)
errx(1, "pf already enabled");
#ifdef __FreeBSD__
else if (errno == ESRCH)
errx(1, "pfil registeration failed");
#endif
else
err(1, "DIOCSTART");
}
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "pf enabled\n");
if (altqsupport && ioctl(dev, DIOCSTARTALTQ))
if (errno != EEXIST)
err(1, "DIOCSTARTALTQ");
return (0);
}
int
pfctl_disable(int dev, int opts)
{
if (ioctl(dev, DIOCSTOP)) {
if (errno == ENOENT)
errx(1, "pf not enabled");
else
err(1, "DIOCSTOP");
}
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "pf disabled\n");
if (altqsupport && ioctl(dev, DIOCSTOPALTQ))
if (errno != ENOENT)
err(1, "DIOCSTOPALTQ");
return (0);
}
int
pfctl_clear_stats(int dev, int opts)
{
if (ioctl(dev, DIOCCLRSTATUS))
err(1, "DIOCCLRSTATUS");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "pf: statistics cleared\n");
return (0);
}
int
pfctl_clear_interface_flags(int dev, int opts)
{
struct pfioc_iface pi;
if ((opts & PF_OPT_NOACTION) == 0) {
bzero(&pi, sizeof(pi));
pi.pfiio_flags = PFI_IFLAG_SETABLE_MASK;
if (ioctl(dev, DIOCCLRIFFLAG, &pi))
err(1, "DIOCCLRIFFLAG");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "pf: interface flags reset\n");
}
return (0);
}
int
pfctl_clear_rules(int dev, int opts, char *anchorname)
{
struct pfr_buffer t;
memset(&t, 0, sizeof(t));
t.pfrb_type = PFRB_TRANS;
if (pfctl_add_trans(&t, PF_RULESET_SCRUB, anchorname) ||
pfctl_add_trans(&t, PF_RULESET_FILTER, anchorname) ||
pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
err(1, "pfctl_clear_rules");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "rules cleared\n");
return (0);
}
int
pfctl_clear_nat(int dev, int opts, char *anchorname)
{
struct pfr_buffer t;
memset(&t, 0, sizeof(t));
t.pfrb_type = PFRB_TRANS;
if (pfctl_add_trans(&t, PF_RULESET_NAT, anchorname) ||
pfctl_add_trans(&t, PF_RULESET_BINAT, anchorname) ||
pfctl_add_trans(&t, PF_RULESET_RDR, anchorname) ||
pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
pfctl_trans(dev, &t, DIOCXCOMMIT, 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_states(int dev, const char *iface, int opts)
{
struct pfioc_state_kill psk;
memset(&psk, 0, sizeof(psk));
if (iface != NULL && strlcpy(psk.psk_ifname, iface,
sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname))
errx(1, "invalid interface: %s", iface);
if (ioctl(dev, DIOCCLRSTATES, &psk))
err(1, "DIOCCLRSTATES");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "%d states cleared\n", psk.psk_af);
return (0);
}
int
pfctl_kill_states(int dev, const char *iface, int opts)
{
struct pfioc_state_kill psk;
struct addrinfo *res[2], *resp[2];
struct sockaddr last_src, last_dst;
int killed, sources, dests;
int ret_ga;
killed = sources = dests = 0;
memset(&psk, 0, sizeof(psk));
memset(&psk.psk_src.addr.v.a.mask, 0xff,
sizeof(psk.psk_src.addr.v.a.mask));
memset(&last_src, 0xff, sizeof(last_src));
memset(&last_dst, 0xff, sizeof(last_dst));
if (iface != NULL && strlcpy(psk.psk_ifname, iface,
sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname))
errx(1, "invalid interface: %s", iface);
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;
psk.psk_af = resp[0]->ai_family;
sources++;
if (psk.psk_af == AF_INET)
psk.psk_src.addr.v.a.addr.v4 =
((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
else if (psk.psk_af == AF_INET6)
psk.psk_src.addr.v.a.addr.v6 =
((struct sockaddr_in6 *)resp[0]->ai_addr)->
sin6_addr;
else
errx(1, "Unknown address family %d", psk.psk_af);
if (state_killers > 1) {
dests = 0;
memset(&psk.psk_dst.addr.v.a.mask, 0xff,
sizeof(psk.psk_dst.addr.v.a.mask));
memset(&last_dst, 0xff, sizeof(last_dst));
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 (psk.psk_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 (psk.psk_af == AF_INET)
psk.psk_dst.addr.v.a.addr.v4 =
((struct sockaddr_in *)resp[1]->
ai_addr)->sin_addr;
else if (psk.psk_af == AF_INET6)
psk.psk_dst.addr.v.a.addr.v6 =
((struct sockaddr_in6 *)resp[1]->
ai_addr)->sin6_addr;
else
errx(1, "Unknown address family %d",
psk.psk_af);
if (ioctl(dev, DIOCKILLSTATES, &psk))
err(1, "DIOCKILLSTATES");
killed += psk.psk_af;
/* fixup psk.psk_af */
psk.psk_af = resp[1]->ai_family;
}
freeaddrinfo(res[1]);
} else {
if (ioctl(dev, DIOCKILLSTATES, &psk))
err(1, "DIOCKILLSTATES");
killed += psk.psk_af;
/* fixup psk.psk_af */
psk.psk_af = res[0]->ai_family;
}
}
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_get_pool(int dev, struct pf_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_clear_pool(struct pf_pool *pool)
{
struct pf_pooladdr *pa;
while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
TAILQ_REMOVE(&pool->list, pa, entries);
free(pa);
}
}
void
pfctl_print_rule_counters(struct pf_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: %-6u]\n",
(unsigned long long)rule->evaluations,
(unsigned long long)rule->packets,
(unsigned long long)rule->bytes, rule->states);
}
void
pfctl_print_title(char *title)
{
if (!first_title)
printf("\n");
first_title = 0;
printf("%s\n", title);
}
int
pfctl_show_rules(int dev, int opts, int format, char *anchorname)
{
struct pfioc_rule pr;
u_int32_t nr, mnr, header = 0;
int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
memset(&pr, 0, sizeof(pr));
memcpy(pr.anchor, anchorname, sizeof(pr.anchor));
if (opts & PF_OPT_SHOWALL) {
pr.rule.action = PF_PASS;
if (ioctl(dev, DIOCGETRULES, &pr)) {
warn("DIOCGETRULES");
return (-1);
}
header++;
}
pr.rule.action = PF_SCRUB;
if (ioctl(dev, DIOCGETRULES, &pr)) {
warn("DIOCGETRULES");
return (-1);
}
if (opts & PF_OPT_SHOWALL) {
if (format == 0 && (pr.nr > 0 || header))
pfctl_print_title("FILTER RULES:");
else if (format == 1 && labels)
pfctl_print_title("LABEL COUNTERS:");
}
mnr = pr.nr;
for (nr = 0; nr < mnr; ++nr) {
pr.nr = nr;
if (ioctl(dev, DIOCGETRULE, &pr)) {
warn("DIOCGETRULE");
return (-1);
}
if (pfctl_get_pool(dev, &pr.rule.rpool,
nr, pr.ticket, PF_SCRUB, anchorname) != 0)
return (-1);
switch (format) {
case 1:
if (pr.rule.label[0]) {
printf("%s ", pr.rule.label);
printf("%llu %llu %llu\n",
(unsigned long long)pr.rule.evaluations,
(unsigned long long)pr.rule.packets,
(unsigned long long)pr.rule.bytes);
}
break;
default:
if (pr.rule.label[0] && (opts & PF_OPT_SHOWALL))
labels = 1;
print_rule(&pr.rule, pr.anchor_call, rule_numbers);
pfctl_print_rule_counters(&pr.rule, opts);
}
pfctl_clear_pool(&pr.rule.rpool);
}
pr.rule.action = PF_PASS;
if (ioctl(dev, DIOCGETRULES, &pr)) {
warn("DIOCGETRULES");
return (-1);
}
mnr = pr.nr;
for (nr = 0; nr < mnr; ++nr) {
pr.nr = nr;
if (ioctl(dev, DIOCGETRULE, &pr)) {
warn("DIOCGETRULE");
return (-1);
}
if (pfctl_get_pool(dev, &pr.rule.rpool,
nr, pr.ticket, PF_PASS, anchorname) != 0)
return (-1);
switch (format) {
case 1:
if (pr.rule.label[0]) {
printf("%s ", pr.rule.label);
printf("%llu %llu %llu\n",
(unsigned long long)pr.rule.evaluations,
(unsigned long long)pr.rule.packets,
(unsigned long long)pr.rule.bytes);
}
break;
default:
if (pr.rule.label[0] && (opts & PF_OPT_SHOWALL))
labels = 1;
print_rule(&pr.rule, pr.anchor_call, rule_numbers);
pfctl_print_rule_counters(&pr.rule, opts);
}
pfctl_clear_pool(&pr.rule.rpool);
}
return (0);
}
int
pfctl_show_nat(int dev, int opts, char *anchorname)
{
struct pfioc_rule pr;
u_int32_t mnr, nr;
static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
int i, dotitle = opts & PF_OPT_SHOWALL;
memset(&pr, 0, sizeof(pr));
memcpy(pr.anchor, anchorname, sizeof(pr.anchor));
for (i = 0; i < 3; i++) {
pr.rule.action = nattype[i];
if (ioctl(dev, DIOCGETRULES, &pr)) {
warn("DIOCGETRULES");
return (-1);
}
mnr = pr.nr;
for (nr = 0; nr < mnr; ++nr) {
pr.nr = nr;
if (ioctl(dev, DIOCGETRULE, &pr)) {
warn("DIOCGETRULE");
return (-1);
}
if (pfctl_get_pool(dev, &pr.rule.rpool, nr,
pr.ticket, nattype[i], anchorname) != 0)
return (-1);
if (dotitle) {
pfctl_print_title("TRANSLATION RULES:");
dotitle = 0;
}
print_rule(&pr.rule, pr.anchor_call,
opts & PF_OPT_VERBOSE2);
pfctl_print_rule_counters(&pr.rule, opts);
pfctl_clear_pool(&pr.rule.rpool);
}
}
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 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");
return (-1);
}
if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len)
break;
if (len == 0 && psn.psn_len == 0)
return (0);
if (len == 0 && psn.psn_len != 0)
len = psn.psn_len;
if (psn.psn_len == 0)
return (0); /* 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++;
}
return (0);
}
int
pfctl_show_states(int dev, const char *iface, int opts)
{
struct pfioc_states ps;
struct pf_state *p;
char *inbuf = NULL, *newinbuf = NULL;
unsigned len = 0;
int i, dotitle = (opts & PF_OPT_SHOWALL);
memset(&ps, 0, sizeof(ps));
for (;;) {
ps.ps_len = len;
if (len) {
newinbuf = realloc(inbuf, len);
if (newinbuf == NULL)
err(1, "realloc");
ps.ps_buf = inbuf = newinbuf;
}
if (ioctl(dev, DIOCGETSTATES, &ps) < 0) {
warn("DIOCGETSTATES");
return (-1);
}
if (ps.ps_len + sizeof(struct pfioc_states) < len)
break;
if (len == 0 && ps.ps_len == 0)
return (0);
if (len == 0 && ps.ps_len != 0)
len = ps.ps_len;
if (ps.ps_len == 0)
return (0); /* no states */
len *= 2;
}
p = ps.ps_states;
for (i = 0; i < ps.ps_len; i += sizeof(*p), p++) {
if (iface != NULL && strcmp(p->u.ifname, iface))
continue;
if (dotitle) {
pfctl_print_title("STATES:");
dotitle = 0;
}
print_state(p, opts);
}
return (0);
}
int
pfctl_show_status(int dev, int opts)
{
struct pf_status status;
if (ioctl(dev, DIOCGETSTATUS, &status)) {
warn("DIOCGETSTATUS");
return (-1);
}
if (opts & PF_OPT_SHOWALL)
pfctl_print_title("INFO:");
print_status(&status, opts);
return (0);
}
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("%-10s ", pf_limits[i].name);
if (pl.limit == UINT_MAX)
printf("unlimited\n");
else
printf("hard limit %6u\n", pl.limit);
}
return (0);
}
/* callbacks for rule/nat/rdr/addr */
int
pfctl_add_pool(struct pfctl *pf, struct pf_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_add_rule(struct pfctl *pf, struct pf_rule *r, const char *anchor_call)
{
u_int8_t rs_num;
struct pfioc_rule pr;
switch (r->action) {
case PF_SCRUB:
case PF_NOSCRUB:
if ((loadopt & PFCTL_FLAG_FILTER) == 0)
return (0);
rs_num = PF_RULESET_SCRUB;
break;
case PF_DROP:
case PF_PASS:
if ((loadopt & PFCTL_FLAG_FILTER) == 0)
return (0);
rs_num = PF_RULESET_FILTER;
break;
case PF_NAT:
case PF_NONAT:
if ((loadopt & PFCTL_FLAG_NAT) == 0)
return (0);
rs_num = PF_RULESET_NAT;
break;
case PF_RDR:
case PF_NORDR:
if ((loadopt & PFCTL_FLAG_NAT) == 0)
return (0);
rs_num = PF_RULESET_RDR;
break;
case PF_BINAT:
case PF_NOBINAT:
if ((loadopt & PFCTL_FLAG_NAT) == 0)
return (0);
rs_num = PF_RULESET_BINAT;
break;
default:
errx(1, "Invalid rule type %d", r->action);
break;
}
if ((pf->opts & PF_OPT_OPTIMIZE) && rs_num == PF_RULESET_FILTER) {
/*
* We'll do an optimization post-pass before finally adding the
* rules. Then we'll disable the optimization flag and feed
* the rules right back into this function.
*/
struct pf_opt_rule *pfr;
struct pf_pooladdr *pa;
if ((pfr = calloc(1, sizeof(*pfr))) == NULL)
err(1, "calloc");
memcpy(&pfr->por_rule, r, sizeof(*r));
if (strlcpy(pfr->por_anchor, anchor_call,
sizeof(pfr->por_anchor)) >= sizeof(pfr->por_anchor))
errx(1, "pfctl_add_rule: strlcpy");
TAILQ_INSERT_TAIL(&pf->opt_queue, pfr, por_entry);
if (TAILQ_FIRST(&r->rpool.list) != NULL) {
TAILQ_INIT(&pfr->por_rule.rpool.list);
while ((pa = TAILQ_FIRST(&r->rpool.list)) != NULL) {
TAILQ_REMOVE(&r->rpool.list, pa, entries);
TAILQ_INSERT_TAIL(&pfr->por_rule.rpool.list, pa,
entries);
}
} else {
memset(&pfr->por_rule.rpool, 0,
sizeof(pfr->por_rule.rpool));
}
return (0);
}
if ((pf->opts & PF_OPT_NOACTION) == 0) {
bzero(&pr, sizeof(pr));
if (strlcpy(pr.anchor, pf->anchor, sizeof(pr.anchor)) >=
sizeof(pr.anchor))
errx(1, "pfctl_add_rule: strlcpy");
if (pfctl_add_pool(pf, &r->rpool, r->af))
return (1);
pr.ticket = pfctl_get_ticket(pf->trans, rs_num, pf->anchor);
pr.pool_ticket = pf->paddr.ticket;
memcpy(&pr.rule, r, sizeof(pr.rule));
strlcpy(pr.anchor_call, anchor_call, sizeof(pr.anchor_call));
if (ioctl(pf->dev, DIOCADDRULE, &pr))
err(1, "DIOCADDRULE");
}
if (pf->opts & PF_OPT_VERBOSE)
print_rule(r, anchor_call, pf->opts & PF_OPT_VERBOSE2);
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, 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)
FILE *fin;
struct pfr_buffer *t, buf;
struct pfioc_altq pa;
struct pfctl pf;
struct pfr_table trs;
int osize;
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));
memset(&pf, 0, sizeof(pf));
memset(&trs, 0, sizeof(trs));
if (strlcpy(trs.pfrt_anchor, anchorname,
sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
ERRX("pfctl_rules: strlcpy");
if (strcmp(filename, "-") == 0) {
fin = stdin;
infile = "stdin";
} else {
if ((fin = pfctl_fopen(filename, "r")) == NULL) {
warn("%s", filename);
return (1);
}
infile = filename;
}
pf.dev = dev;
pf.opts = opts;
pf.loadopt = loadopt;
if (anchorname[0])
pf.loadopt &= ~PFCTL_FLAG_ALTQ;
pf.paltq = &pa;
pf.trans = t;
pf.rule_nr = 0;
pf.anchor = anchorname;
TAILQ_INIT(&pf.opt_queue);
pfctl_init_options(&pf);
if ((opts & PF_OPT_NOACTION) == 0) {
if ((pf.loadopt & PFCTL_FLAG_NAT) != 0) {
if (pfctl_add_trans(t, PF_RULESET_NAT, anchorname) ||
pfctl_add_trans(t, PF_RULESET_BINAT, anchorname) ||
pfctl_add_trans(t, PF_RULESET_RDR, anchorname))
ERR("pfctl_rules");
}
if (((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))) {
if (pfctl_add_trans(t, PF_RULESET_ALTQ, anchorname))
ERR("pfctl_rules");
}
if ((pf.loadopt & PFCTL_FLAG_FILTER) != 0) {
if (pfctl_add_trans(t, PF_RULESET_SCRUB, anchorname) ||
pfctl_add_trans(t, PF_RULESET_FILTER, anchorname))
ERR("pfctl_rules");
}
if (pf.loadopt & PFCTL_FLAG_TABLE) {
if (pfctl_add_trans(t, PF_RULESET_TABLE, anchorname))
ERR("pfctl_rules");
}
if (pfctl_trans(dev, t, DIOCXBEGIN, osize))
ERR("DIOCXBEGIN");
if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
pa.ticket = pfctl_get_ticket(t, PF_RULESET_ALTQ,
anchorname);
if (pf.loadopt & PFCTL_FLAG_TABLE)
pf.tticket = pfctl_get_ticket(t, PF_RULESET_TABLE,
anchorname);
}
if (parse_rules(fin, &pf) < 0) {
if ((opts & PF_OPT_NOACTION) == 0)
ERRX("Syntax error in config file: "
"pf rules not loaded");
else
goto _error;
}
if (pf.opts & PF_OPT_OPTIMIZE) {
if (pfctl_optimize_rules(&pf))
ERRX("Failed to optimize ruleset: pf rules not loaded");
}
if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
if (check_commit_altq(dev, opts) != 0)
ERRX("errors in altq config");
if (fin != stdin) {
fclose(fin);
fin = NULL;
}
/* process "load anchor" directives */
if (!anchorname[0])
if (pfctl_load_anchors(dev, opts, 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, 0))
ERR("DIOCXCOMMIT");
}
return (0);
_error:
if (trans == NULL) { /* main ruleset */
if ((opts & PF_OPT_NOACTION) == 0)
if (pfctl_trans(dev, t, DIOCXROLLBACK, 0))
err(1, "DIOCXROLLBACK");
exit(1);
} else { /* sub ruleset */
if (fin != NULL && fin != stdin)
fclose(fin);
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->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
pf->debug = PF_DEBUG_URGENT;
}
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;
}
/* 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;
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("Bad hint name.");
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_set_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_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;
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;
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
return (0);
bzero(&pi, sizeof(pi));
pi.pfiio_flags = flags;
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");
}
}
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_clear_rule_counters(int dev, int opts)
{
if (ioctl(dev, DIOCCLRRULECTRS))
err(1, "DIOCCLRRULECTRS");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "pf: rule counters cleared\n");
return (0);
}
int
pfctl_test_altqsupport(int dev, int opts)
{
#if defined(__FreeBSD__) && !defined(ENABLE_ALTQ)
return (0);
#else
struct pfioc_altq pa;
if (ioctl(dev, DIOCGETALTQS, &pa)) {
if (errno == ENODEV) {
if (!(opts & PF_OPT_QUIET))
fprintf(stderr, "No ALTQ support in kernel\n"
"ALTQ related functions disabled\n");
return (0);
} else
err(1, "DIOCGETALTQS");
}
return (1);
#endif
}
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));
printf(" %s\n", sub);
if (opts & PF_OPT_VERBOSE && pfctl_show_anchors(dev, opts, sub))
return (-1);
}
return (0);
}
const char *
pfctl_lookup_option(char *cmd, const char **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;
char anchorname[MAXPATHLEN];
if (argc < 2)
usage();
while ((ch = getopt(argc, argv,
"a:AdD:eqf:F:ghi:k:mnNOop: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 'm':
opts |= PF_OPT_MERGE;
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':
if (opts & PF_OPT_OPTIMIZE)
opts |= PF_OPT_OPTIMIZE_PROFILE;
else
opts |= PF_OPT_OPTIMIZE;
break;
case 'O':
loadopt |= PFCTL_FLAG_OPTION;
break;
case 'p':
pf_device = optarg;
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("acdfkrz", ch) ? O_RDWR : O_RDONLY;
} else if (argc != optind) {
warnx("unknown command line argument: %s ...", argv[optind]);
usage();
/* NOTREACHED */
}
if (loadopt == 0)
loadopt = ~0;
memset(anchorname, 0, sizeof(anchorname));
if (anchoropt != NULL) {
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;
}
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(__FreeBSD__) && !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);
break;
case 'r':
pfctl_load_fingerprints(dev, opts);
pfctl_show_rules(dev, opts, 0, anchorname);
break;
case 'l':
pfctl_load_fingerprints(dev, opts);
pfctl_show_rules(dev, opts, 1, anchorname);
break;
case 'n':
pfctl_load_fingerprints(dev, opts);
pfctl_show_nat(dev, opts, anchorname);
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 't':
pfctl_show_timeouts(dev, opts);
break;
case 'm':
pfctl_show_limits(dev, opts);
break;
case 'a':
opts |= PF_OPT_SHOWALL;
pfctl_load_fingerprints(dev, opts);
pfctl_show_nat(dev, opts, anchorname);
pfctl_show_rules(dev, opts, 0, anchorname);
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, opts, 1, anchorname);
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 (clearopt != NULL) {
switch (*clearopt) {
case 'r':
pfctl_clear_rules(dev, opts, anchorname);
break;
case 'n':
pfctl_clear_nat(dev, opts, anchorname);
break;
case 'q':
pfctl_clear_altq(dev, opts);
break;
case 's':
pfctl_clear_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_clear_rules(dev, opts, anchorname);
pfctl_clear_nat(dev, opts, anchorname);
pfctl_clear_tables(anchorname, opts);
if (!*anchorname) {
pfctl_clear_altq(dev, opts);
pfctl_clear_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)
pfctl_kill_states(dev, ifaceopt, opts);
if (tblcmdopt != NULL) {
error = pfctl_command_tables(argc, argv, tableopt,
tblcmdopt, rulesopt, anchorname, opts);
rulesopt = NULL;
}
if ((rulesopt != NULL) && (!*anchorname))
if (pfctl_clear_interface_flags(dev, opts | PF_OPT_QUIET))
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 (pfctl_rules(dev, rulesopt, opts, 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;
}
}
if (opts & PF_OPT_CLRRULECTRS) {
if (pfctl_clear_rule_counters(dev, opts))
error = 1;
}
exit(error);
}
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