#include <sys/cdefs.h>
#define PFIOC_USE_LATEST
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/endian.h>
#include <net/if.h>
#include <netinet/in.h>
#include <net/pfvar.h>
#include <arpa/inet.h>
#include <net/altq/altq.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <libpfctl.h>
#include <limits.h>
#include <netdb.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdarg.h>
#include <stddef.h>
#include <libgen.h>
#include "pfctl_parser.h"
#include "pfctl.h"
struct pfctl_opt_id;
void usage(void);
int pfctl_enable(int, int);
int pfctl_disable(int, int);
void pfctl_clear_stats(struct pfctl_handle *, int);
void pfctl_get_skip_ifaces(void);
void pfctl_check_skip_ifaces(char *);
void pfctl_adjust_skip_ifaces(struct pfctl *);
void pfctl_clear_interface_flags(int, int);
void pfctl_flush_eth_rules(int, int, char *);
int pfctl_flush_rules(int, int, char *);
void pfctl_flush_nat(int, int, char *);
int pfctl_clear_altq(int, int);
void pfctl_clear_src_nodes(int, int);
void pfctl_clear_iface_states(int, const char *, int);
struct addrinfo *
pfctl_addrprefix(char *, struct pf_addr *, int);
void pfctl_kill_src_nodes(int, int);
void pfctl_net_kill_states(int, const char *, int);
void pfctl_gateway_kill_states(int, const char *, int);
void pfctl_label_kill_states(int, const char *, int);
void pfctl_id_kill_states(int, const char *, int);
void pfctl_key_kill_states(int, const char *, int);
void pfctl_kill_source(int, const char *, const char *, int);
int pfctl_parse_host(char *, struct pf_rule_addr *);
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 *, u_int32_t);
int pfctl_load_reassembly(struct pfctl *, u_int32_t);
int pfctl_load_syncookies(struct pfctl *, u_int8_t);
int pfctl_get_pool(int, struct pfctl_pool *, u_int32_t, u_int32_t, int,
const char *, int);
void pfctl_print_eth_rule_counters(struct pfctl_eth_rule *, int);
void pfctl_print_rule_counters(struct pfctl_rule *, int);
int pfctl_show_statelims(int, enum pfctl_show, int);
int pfctl_show_sourcelims(int, enum pfctl_show, int, const char *);
int pfctl_show_eth_rules(int, char *, int, enum pfctl_show, char *, int, int);
int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int, int);
int pfctl_show_nat(int, const char *, int, char *, int, int);
int pfctl_show_src_nodes(int, int);
int pfctl_show_states(int, const char *, int);
int pfctl_show_status(int, int);
int pfctl_show_running(int);
int pfctl_show_timeouts(int, int);
int pfctl_show_limits(int, int);
void pfctl_read_limits(struct pfctl_handle *);
void pfctl_restore_limits(void);
void pfctl_debug(int, u_int32_t, int);
int pfctl_test_altqsupport(int, int);
int pfctl_show_anchors(int, int, char *);
int pfctl_show_eth_anchors(int, int, char *);
int pfctl_ruleset_trans(struct pfctl *, char *, struct pfctl_anchor *, bool);
void pfctl_load_statelims(struct pfctl *);
void pfctl_load_statelim(struct pfctl *, struct pfctl_statelim *);
void pfctl_load_sourcelims(struct pfctl *);
void pfctl_load_sourcelim(struct pfctl *, struct pfctl_source_lim *);
int pfctl_eth_ruleset_trans(struct pfctl *, char *,
struct pfctl_eth_anchor *);
int pfctl_load_eth_ruleset(struct pfctl *, char *,
struct pfctl_eth_ruleset *, int);
int pfctl_load_eth_rule(struct pfctl *, char *, struct pfctl_eth_rule *,
int);
int pfctl_load_ruleset(struct pfctl *, char *,
struct pfctl_ruleset *, int, int);
int pfctl_load_rule(struct pfctl *, char *, struct pfctl_rule *, int);
const char *pfctl_lookup_option(char *, const char * const *);
int pfctl_lookup_id(const char *, const struct pfctl_opt_id *);
void pfctl_reset(int, int);
int pfctl_walk_show(int, struct pfioc_ruleset *, void *);
int pfctl_walk_get(int, struct pfioc_ruleset *, void *);
int pfctl_walk_anchors(int, int, const char *,
int(*)(int, struct pfioc_ruleset *, void *), void *);
struct pfr_anchors *
pfctl_get_anchors(int, const char *, int);
int pfctl_recurse(int, int, const char *,
int(*)(int, int, struct pfr_anchoritem *));
int pfctl_call_clearrules(int, int, struct pfr_anchoritem *);
int pfctl_call_cleartables(int, int, struct pfr_anchoritem *);
int pfctl_call_clearanchors(int, int, struct pfr_anchoritem *);
int pfctl_call_showtables(int, int, struct pfr_anchoritem *);
RB_PROTOTYPE(pfctl_statelim_ids, pfctl_statelim, entry,
pfctl_statelim_id_cmp);
RB_PROTOTYPE(pfctl_statelim_nms, pfctl_statelim, entry,
pfctl_statelim_nm_cmp);
RB_PROTOTYPE(pfctl_sourcelim_ids, pfctl_sourcelim, entry,
pfctl_sourcelim_id_cmp);
RB_PROTOTYPE(pfctl_sourcelim_nms, pfctl_sourcelim, entry,
pfctl_sourcelim_nm_cmp);
enum showopt_id {
SHOWOPT_NONE = 0,
SHOWOPT_ETHER,
SHOWOPT_NAT,
SHOWOPT_QUEUE,
SHOWOPT_RULES,
SHOWOPT_ANCHORS,
SHOWOPT_SOURCES,
SHOWOPT_STATES,
SHOWOPT_INFO,
SHOWOPT_IFACES,
SHOWOPT_LABELS,
SHOWOPT_TIMEOUTS,
SHOWOPT_MEMORY,
SHOWOPT_TABLES,
SHOWOPT_OSFP,
SHOWOPT_RUNNING,
SHOWOPT_STATELIMS,
SHOWOPT_SOURCELIMS,
SHOWOPT_CREATORIDS,
SHOWOPT_ALL,
};
static struct pfctl_anchor_global pf_anchors;
struct pfctl_anchor pf_main_anchor;
struct pfctl_eth_anchor pf_eth_main_anchor;
static struct pfr_buffer skip_b;
static const char *clearopt;
static char *rulesopt;
static int showopt;
static const char *debugopt;
static char *anchoropt;
static const char *optiopt = NULL;
static const char *pf_device = PF_DEVICE;
static char *ifaceopt;
static char *tableopt;
static const char *tblcmdopt;
static int src_node_killers;
static char *src_node_kill[2];
static int state_killers;
static char *state_kill[2];
int loadopt;
int altqsupport;
int dev = -1;
struct pfctl_handle *pfh = NULL;
static int first_title = 1;
static int labels = 0;
static int exit_val = 0;
#define INDENT(d, o) do { \
if (o) { \
int i; \
for (i=0; i < d; i++) \
printf(" "); \
} \
} while (0); \
static const struct {
const char *name;
int index;
} pf_limits[] = {
{ "states", PF_LIMIT_STATES },
{ "src-nodes", PF_LIMIT_SRC_NODES },
{ "frags", PF_LIMIT_FRAGS },
{ "table-entries", PF_LIMIT_TABLE_ENTRIES },
{ "anchors", PF_LIMIT_ANCHORS },
{ "eth-anchors", PF_LIMIT_ETH_ANCHORS },
{ NULL, 0 }
};
static unsigned int limit_curr[PF_LIMIT_MAX];
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 * const clearopt_list[] = {
"nat", "queue", "rules", "Sources",
"states", "info", "Tables", "osfp", "all",
"ethernet", "Reset", NULL
};
struct pfctl_opt_id {
const char *name;
int id;
};
static const struct pfctl_opt_id showopt_list[] = {
{ "ethernet", SHOWOPT_ETHER },
{ "nat", SHOWOPT_NAT },
{ "queue", SHOWOPT_QUEUE },
{ "rules", SHOWOPT_RULES },
{ "Anchors", SHOWOPT_ANCHORS },
{ "Sources", SHOWOPT_SOURCES },
{ "states", SHOWOPT_STATES },
{ "info", SHOWOPT_INFO },
{ "Interfaces", SHOWOPT_IFACES },
{ "labels", SHOWOPT_LABELS },
{ "timeouts", SHOWOPT_TIMEOUTS },
{ "memory", SHOWOPT_MEMORY },
{ "Tables", SHOWOPT_TABLES },
{ "osfp", SHOWOPT_OSFP },
{ "Running", SHOWOPT_RUNNING },
{ "LimiterStates", SHOWOPT_STATELIMS },
{ "LimiterSrcs", SHOWOPT_SOURCELIMS },
{ "creatorids", SHOWOPT_CREATORIDS },
{ "all", SHOWOPT_ALL },
{ NULL, SHOWOPT_NONE },
};
static const char * const tblcmdopt_list[] = {
"kill", "flush", "add", "delete", "load", "replace", "show",
"test", "zero", "expire", "reset", NULL
};
static const char * const debugopt_list[] = {
"none", "urgent", "misc", "loud", NULL
};
static const char * const optiopt_list[] = {
"none", "basic", "profile", NULL
};
void
usage(void)
{
extern char *__progname;
fprintf(stderr,
"usage: %s [-AdeghMmNnOPqRSrvz] [-a anchor] [-D macro=value] [-F modifier]\n"
"\t[-f file] [-i interface] [-K host | network]\n"
"\t[-k host | network | gateway | label | id] [-o level] [-p device]\n"
"\t[-s modifier] [-t table -T command [address ...]] [-x level]\n",
__progname);
exit(1);
}
void
pfctl_err(int opts, int eval, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if ((opts & PF_OPT_IGNFAIL) == 0)
verr(eval, fmt, ap);
else
vwarn(fmt, ap);
va_end(ap);
exit_val = eval;
}
void
pfctl_errx(int opts, int eval, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if ((opts & PF_OPT_IGNFAIL) == 0)
verrx(eval, fmt, ap);
else
vwarnx(fmt, ap);
va_end(ap);
exit_val = eval;
}
const char *
pfctl_proto2name(int proto)
{
static const char *pfctl_proto_cache[259];
struct protoent *p;
if (proto >= nitems(pfctl_proto_cache)) {
p = getprotobynumber(proto);
if (p == NULL) {
return (NULL);
}
return (p->p_name);
}
if (pfctl_proto_cache[proto] == NULL) {
p = getprotobynumber(proto);
if (p == NULL) {
return (NULL);
}
pfctl_proto_cache[proto] = strdup(p->p_name);
}
return (pfctl_proto_cache[proto]);
}
int
pfctl_enable(int dev, int opts)
{
int ret;
if ((ret = pfctl_startstop(pfh, 1)) != 0) {
if (ret == EEXIST)
errx(1, "pf already enabled");
else if (ret == ESRCH)
errx(1, "pfil registration failed");
else
errc(1, ret, "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)
{
int ret;
if ((ret = pfctl_startstop(pfh, 0)) != 0) {
if (ret == ENOENT)
errx(1, "pf not enabled");
else
errc(1, ret, "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);
}
void
pfctl_clear_stats(struct pfctl_handle *h, int opts)
{
int ret;
if ((ret = pfctl_clear_status(h)) != 0)
pfctl_err(opts, 1, "DIOCCLRSTATUS");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "pf: statistics cleared\n");
}
void
pfctl_get_skip_ifaces(void)
{
bzero(&skip_b, sizeof(skip_b));
skip_b.pfrb_type = PFRB_IFACES;
for (;;) {
pfr_buf_grow(&skip_b, skip_b.pfrb_size);
skip_b.pfrb_size = skip_b.pfrb_msize;
if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size))
err(1, "pfi_get_ifaces");
if (skip_b.pfrb_size <= skip_b.pfrb_msize)
break;
}
}
void
pfctl_check_skip_ifaces(char *ifname)
{
struct pfi_kif *p;
struct node_host *h = NULL, *n = NULL;
PFRB_FOREACH(p, &skip_b) {
if (!strcmp(ifname, p->pfik_name) &&
(p->pfik_flags & PFI_IFLAG_SKIP))
p->pfik_flags &= ~PFI_IFLAG_SKIP;
if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) {
if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
continue;
for (n = h; n != NULL; n = n->next) {
if (strncmp(p->pfik_name, ifname, IFNAMSIZ))
continue;
p->pfik_flags &= ~PFI_IFLAG_SKIP;
}
}
}
}
void
pfctl_adjust_skip_ifaces(struct pfctl *pf)
{
struct pfi_kif *p, *pp;
struct node_host *h = NULL, *n = NULL;
PFRB_FOREACH(p, &skip_b) {
if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP))
continue;
pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
continue;
for (n = h; n != NULL; n = n->next)
PFRB_FOREACH(pp, &skip_b) {
if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ))
continue;
if (!(pp->pfik_flags & PFI_IFLAG_SKIP))
pfctl_set_interface_flags(pf,
pp->pfik_name, PFI_IFLAG_SKIP, 1);
if (pp->pfik_flags & PFI_IFLAG_SKIP)
pp->pfik_flags &= ~PFI_IFLAG_SKIP;
}
}
PFRB_FOREACH(p, &skip_b) {
if (! (p->pfik_flags & PFI_IFLAG_SKIP))
continue;
pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
}
}
void
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_SKIP;
if (ioctl(dev, DIOCCLRIFFLAG, &pi))
err(1, "DIOCCLRIFFLAG");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "pf: interface flags reset\n");
}
}
void
pfctl_flush_eth_rules(int dev, int opts, char *anchorname)
{
int ret;
ret = pfctl_clear_eth_rules(dev, anchorname);
if (ret != 0)
err(1, "pfctl_clear_eth_rules");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "Ethernet rules cleared\n");
}
int
pfctl_flush_rules(int dev, int opts, char *anchorname)
{
int ret;
ret = pfctl_clear_rules(dev, anchorname);
if (ret != 0) {
pfctl_err(opts, 1, "%s", __func__);
return (1);
} else if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "rules cleared\n");
return (0);
}
void
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");
}
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);
}
void
pfctl_clear_src_nodes(int dev, int opts)
{
if (ioctl(dev, DIOCCLRSRCNODES))
pfctl_err(opts, 1, "DIOCCLRSRCNODES");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "source tracking entries cleared\n");
}
void
pfctl_clear_iface_states(int dev, const char *iface, int opts)
{
struct pfctl_kill kill;
unsigned int killed;
int ret;
memset(&kill, 0, sizeof(kill));
if (iface != NULL && strlcpy(kill.ifname, iface,
sizeof(kill.ifname)) >= sizeof(kill.ifname))
pfctl_errx(opts, 1, "invalid interface: %s", iface);
if (opts & PF_OPT_KILLMATCH)
kill.kill_match = true;
if ((ret = pfctl_clear_states_h(pfh, &kill, &killed)) != 0)
pfctl_err(opts, 1, "DIOCCLRSTATUS");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "%d states cleared\n", killed);
}
struct addrinfo *
pfctl_addrprefix(char *addr, struct pf_addr *mask, int numeric)
{
char *p;
const char *errstr;
int prefix, ret_ga, q, r;
struct addrinfo hints, *res;
bzero(&hints, sizeof(hints));
hints.ai_socktype = SOCK_DGRAM;
if (numeric)
hints.ai_flags = AI_NUMERICHOST;
if ((p = strchr(addr, '/')) != NULL) {
*p++ = '\0';
hints.ai_flags |= AI_NUMERICHOST;
}
if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
}
if (p == NULL)
return (res);
prefix = strtonum(p, 0, res->ai_family == AF_INET6 ? 128 : 32, &errstr);
if (errstr)
errx(1, "prefix is %s: %s", errstr, p);
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;
}
return (res);
}
void
pfctl_kill_src_nodes(int dev, int opts)
{
struct pfioc_src_node_kill psnk;
struct addrinfo *res[2], *resp[2];
struct sockaddr last_src, last_dst;
int killed, sources, dests;
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));
res[0] = pfctl_addrprefix(src_node_kill[0],
&psnk.psnk_src.addr.v.a.mask, (opts & PF_OPT_NODNS));
for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
if (resp[0]->ai_addr == NULL)
continue;
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++;
copy_satopfaddr(&psnk.psnk_src.addr.v.a.addr, resp[0]->ai_addr);
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));
res[1] = pfctl_addrprefix(src_node_kill[1],
&psnk.psnk_dst.addr.v.a.mask,
(opts & PF_OPT_NODNS));
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++;
copy_satopfaddr(&psnk.psnk_dst.addr.v.a.addr,
resp[1]->ai_addr);
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);
}
void
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;
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))
pfctl_errx(opts, 1, "invalid interface: %s", iface);
if (state_killers == 2 && (strcmp(state_kill[0], "nat") == 0)) {
kill.nat = true;
state_kill[0] = state_kill[1];
state_killers = 1;
}
res[0] = pfctl_addrprefix(state_kill[0],
&kill.src.addr.v.a.mask, (opts & PF_OPT_NODNS));
if (opts & PF_OPT_KILLMATCH)
kill.kill_match = true;
for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
if (resp[0]->ai_addr == NULL)
continue;
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++;
copy_satopfaddr(&kill.src.addr.v.a.addr, resp[0]->ai_addr);
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));
res[1] = pfctl_addrprefix(state_kill[1],
&kill.dst.addr.v.a.mask,
(opts & PF_OPT_NODNS));
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++;
copy_satopfaddr(&kill.dst.addr.v.a.addr,
resp[1]->ai_addr);
if ((ret = pfctl_kill_states_h(pfh, &kill, &newkilled)) != 0)
pfctl_errx(opts, 1, "DIOCKILLSTATES");
killed += newkilled;
}
freeaddrinfo(res[1]);
} else {
if ((ret = pfctl_kill_states_h(pfh, &kill, &newkilled)) != 0)
pfctl_errx(opts, 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);
}
void
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;
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))
pfctl_errx(opts, 1, "invalid interface: %s", iface);
if (opts & PF_OPT_KILLMATCH)
kill.kill_match = true;
res = pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask,
(opts & PF_OPT_NODNS));
for (resp = res; resp; resp = resp->ai_next) {
if (resp->ai_addr == NULL)
continue;
if (memcmp(&last_src, resp->ai_addr, sizeof(last_src)) == 0)
continue;
last_src = *(struct sockaddr *)resp->ai_addr;
kill.af = resp->ai_family;
copy_satopfaddr(&kill.rt_addr.addr.v.a.addr,
resp->ai_addr);
if (pfctl_kill_states_h(pfh, &kill, &newkilled))
pfctl_errx(opts, 1, "DIOCKILLSTATES");
killed += newkilled;
}
freeaddrinfo(res);
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "killed %d states\n", killed);
}
void
pfctl_label_kill_states(int dev, const char *iface, int opts)
{
struct pfctl_kill kill;
unsigned int killed;
int ret;
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))
pfctl_errx(opts, 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 ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
pfctl_errx(opts, 1, "DIOCKILLSTATES");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "killed %d states\n", killed);
}
void
pfctl_id_kill_states(int dev, const char *iface, int opts)
{
struct pfctl_kill kill;
unsigned int killed;
int ret;
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 ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
pfctl_errx(opts, 1, "DIOCKILLSTATES");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "killed %d states\n", killed);
}
void
pfctl_key_kill_states(int dev, const char *iface, int opts)
{
struct pfctl_kill kill;
char *s, *token, *tokens[4];
struct protoent *p;
u_int i, sidx, didx;
int ret, killed;
if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
warnx("no key specified");
usage();
}
memset(&kill, 0, sizeof(kill));
if (iface != NULL &&
strlcpy(kill.ifname, iface, sizeof(kill.ifname)) >=
sizeof(kill.ifname))
pfctl_errx(opts, 1, "invalid interface: %s", iface);
s = strdup(state_kill[1]);
if (!s)
errx(1, "%s: strdup", __func__);
i = 0;
while ((token = strsep(&s, " \t")) != NULL)
if (*token != '\0') {
if (i < 4)
tokens[i] = token;
i++;
}
if (i != 4)
errx(1, "%s: key must be "
"\"protocol host1:port1 direction host2:port2\" format",
__func__);
if ((p = getprotobyname(tokens[0])) == NULL)
errx(1, "invalid protocol: %s", tokens[0]);
kill.proto = p->p_proto;
if (strcmp(tokens[2], "->") == 0) {
sidx = 1;
didx = 3;
} else if (strcmp(tokens[2], "<-") == 0) {
sidx = 3;
didx = 1;
} else
errx(1, "invalid direction: %s", tokens[2]);
if (pfctl_parse_host(tokens[sidx], &kill.src) == -1)
errx(1, "invalid host: %s", tokens[sidx]);
if (pfctl_parse_host(tokens[didx], &kill.dst) == -1)
errx(1, "invalid host: %s", tokens[didx]);
if ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
pfctl_errx(opts, 1, "DIOCKILLSTATES");
if ((opts & PF_OPT_QUIET) == 0)
fprintf(stderr, "killed %d states\n", killed);
}
int
pfctl_parse_host(char *str, struct pf_rule_addr *addr)
{
char *s = NULL, *sbs, *sbe;
struct addrinfo hints, *ai;
s = strdup(str);
if (!s)
errx(1, "pfctl_parse_host: strdup");
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_NUMERICHOST;
if ((sbs = strchr(s, '[')) != NULL && (sbe = strrchr(s, ']')) != NULL) {
hints.ai_family = AF_INET6;
*(sbs++) = *sbe = '\0';
} else if ((sbs = strchr(s, ':')) != NULL) {
hints.ai_family = AF_INET;
*(sbs++) = '\0';
} else {
}
if (getaddrinfo(s, sbs, &hints, &ai) != 0)
goto error;
copy_satopfaddr(&addr->addr.v.a.addr, ai->ai_addr);
addr->port[0] = ai->ai_family == AF_INET6 ?
((struct sockaddr_in6 *)ai->ai_addr)->sin6_port :
((struct sockaddr_in *)ai->ai_addr)->sin_port;
freeaddrinfo(ai);
free(s);
memset(&addr->addr.v.a.mask, 0xff, sizeof(struct pf_addr));
addr->port_op = PF_OP_EQ;
addr->addr.type = PF_ADDR_ADDRMASK;
return (0);
error:
free(s);
return (-1);
}
int
pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr,
u_int32_t ticket, int r_action, const char *anchorname, int which)
{
struct pfioc_pooladdr pp;
struct pfctl_pooladdr *pa;
u_int32_t pnr, mpnr;
int ret;
memset(&pp, 0, sizeof(pp));
if ((ret = pfctl_get_addrs(pfh, ticket, nr, r_action, anchorname, &mpnr, which)) != 0) {
warnc(ret, "DIOCGETADDRS");
return (-1);
}
TAILQ_INIT(&pool->list);
for (pnr = 0; pnr < mpnr; ++pnr) {
if ((ret = pfctl_get_addr(pfh, ticket, nr, r_action, anchorname, pnr, &pp, which)) != 0) {
warnc(ret, "DIOCGETADDR");
return (-1);
}
pa = calloc(1, sizeof(struct pfctl_pooladdr));
if (pa == NULL)
err(1, "calloc");
bcopy(&pp.addr, pa, sizeof(struct pfctl_pooladdr));
pa->af = pp.af;
TAILQ_INSERT_TAIL(&pool->list, pa, entries);
}
return (0);
}
void
pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst)
{
struct pfctl_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 pfctl_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]));
}
if (opts & PF_OPT_VERBOSE2) {
char timestr[30];
if (rule->last_active_timestamp != 0) {
bcopy(ctime(&rule->last_active_timestamp), timestr,
sizeof(timestr));
*strchr(timestr, '\n') = '\0';
} else {
snprintf(timestr, sizeof(timestr), "N/A");
}
printf(" [ Last Active Time: %s ]\n", timestr);
}
}
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", "da", "sp", "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 (rule->rule_flag & PFRULE_EXPIRED)
printf(" [ Expired: %lld secs ago ]\n",
(long long)(time(NULL) - rule->exptime));
}
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);
printf(" [ Source Nodes: %-6ju "
"Limit: %-6ju "
"NAT/RDR: %-6ju "
"Route: %-6ju "
"]\n",
(uintmax_t)rule->src_nodes,
(uintmax_t)rule->src_nodes_type[PF_SN_LIMIT],
(uintmax_t)rule->src_nodes_type[PF_SN_NAT],
(uintmax_t)rule->src_nodes_type[PF_SN_ROUTE]);
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);
}
if (opts & PF_OPT_VERBOSE2) {
char timestr[30];
if (rule->last_active_timestamp != 0) {
bcopy(ctime(&rule->last_active_timestamp), timestr,
sizeof(timestr));
*strchr(timestr, '\n') = '\0';
} else {
snprintf(timestr, sizeof(timestr), "N/A");
}
printf(" [ Last Active Time: %s ]\n", timestr);
}
}
void
pfctl_print_title(char *title)
{
if (!first_title)
printf("\n");
first_title = 0;
printf("%s\n", title);
}
int
pfctl_show_statelims(int dev, enum pfctl_show format, int opts)
{
struct pfctl_state_lim stlim;
uint32_t id = PF_STATELIM_ID_MIN;
int error;
if (opts & PF_OPT_SHOWALL)
pfctl_print_title("STATE LIMITERS:");
if (format == PFCTL_SHOW_LABELS) {
printf("%3s %8s/%-8s %5s/%-5s %8s %8s %8s\n", "ID", "USE",
"LIMIT", "RATE", "SECS", "ADMIT", "HARDLIM", "RATELIM");
}
for (;;) {
memset(&stlim, 0, sizeof(stlim));
stlim.id = id;
error = pfctl_state_limiter_nget(pfh, &stlim);
if (error != 0) {
if (error == ENOENT) {
return (0);
}
warnc(error, "DIOCGETNSTATELIM %u", stlim.id);
return (-1);
}
switch (format) {
case PFCTL_SHOW_RULES:
print_statelim(&stlim);
break;
case PFCTL_SHOW_LABELS:
printf("%3u %8u/%-8u ", stlim.id, stlim.inuse,
stlim.limit);
if (stlim.rate.limit != 0) {
printf("%5u/%-5u ", stlim.rate.limit,
stlim.rate.seconds);
} else
printf("%5s/%-5s ", "nil", "nil");
printf("%8ju %8ju %8ju\n", stlim.admitted,
stlim.hardlimited, stlim.ratelimited);
break;
default:
errx(1, "%s: unexpected format %d", __func__, format);
}
id = stlim.id + 1;
}
}
static inline int
pf_addr_inc(struct pf_addr *addr)
{
int i;
uint32_t val, inc;
for (i = 3; i >= 0; i--) {
val = ntohl(addr->addr32[i]);
inc = val + 1;
addr->addr32[i] = htonl(inc);
if (inc > val)
return (0);
}
return (1);
}
static int
pfctl_print_source(struct pfctl_source *e, void *arg)
{
print_addr_str(e->af, &e->addr);
switch (e->af) {
case AF_INET:
printf("/%u ", e->inet_prefix);
break;
case AF_INET6:
printf("/%u ", e->inet6_prefix);
break;
default:
printf("/af? ");
break;
}
printf("rdomain %u ", e->rdomain);
printf("inuse %u/%u ", e->inuse, e->limit);
printf("admit %ju hardlim %ju ratelim %ju\n",
e->admitted, e->hardlimited, e->ratelimited);
return (0);
}
static int
pfctl_show_sources(int dev, const struct pfctl_source_lim *srlim,
enum pfctl_show format, int opts)
{
int error;
if (format != PFCTL_SHOW_LABELS)
errx(1, "%s format is not PFCTL_SHOW_LABELS", __func__);
error = pfctl_source_get(pfh, srlim->id, pfctl_print_source, NULL);
if (error != 0)
warnc(error, "DIOCGETNSOURCE %u", srlim->id);
return (error);
}
int
pfctl_show_sourcelims(int dev, enum pfctl_show format, int opts,
const char *idopt)
{
struct pfctl_source_lim srlim;
uint32_t id = PF_SOURCELIM_ID_MIN;
int error;
if (idopt != NULL) {
const char *errstr;
id = strtonum(idopt, PF_SOURCELIM_ID_MIN, PF_SOURCELIM_ID_MAX,
&errstr);
if (errstr != NULL)
errx(1, "source limiter id: %s", errstr);
}
if (opts & PF_OPT_SHOWALL)
pfctl_print_title("SOURCE LIMITERS:");
if (format == PFCTL_SHOW_LABELS) {
printf("%3s %8s/%-8s %5s %5s/%-5s %8s %8s %8s %8s\n", "ID",
"USE", "ADDRS", "LIMIT", "RATE", "SECS", "ADMIT", "ADDRLIM",
"HARDLIM", "RATELIM");
}
for (;;) {
memset(&srlim, 0, sizeof(srlim));
srlim.id = id;
if (idopt != NULL) {
error = pfctl_source_limiter_get(pfh, &srlim);
} else {
error = pfctl_source_limiter_nget(pfh, &srlim);
}
if (error != 0) {
if (error == ESRCH) {
return (0);
}
warnc(error, "DIOCGETNSOURCELIM %u", srlim.id);
return (-1);
}
switch (format) {
case PFCTL_SHOW_RULES:
print_sourcelim(&srlim);
break;
case PFCTL_SHOW_LABELS:
printf("%3u %8u/%-8u %5u ", srlim.id, srlim.nentries,
srlim.entries, srlim.limit);
if (srlim.rate.limit != 0) {
printf("%5u/%-5u ", srlim.rate.limit,
srlim.rate.seconds);
} else
printf("%5s/%-5s ", "nil", "nil");
printf("%8ju %8ju %8ju %8ju\n",
srlim.admitted, srlim.addrlimited, srlim.hardlimited,
srlim.ratelimited);
if (opts & PF_OPT_VERBOSE)
if (pfctl_show_sources(dev, &srlim, format,
opts) != 0)
return (-1);
break;
default:
errx(1, "%s: unexpected format %d", __func__, format);
}
id = srlim.id + 1;
}
return (0);
}
void
pfctl_kill_source(int dev, const char *idopt, const char *source, int opts)
{
struct pfctl_source_clear clear = { 0 };
unsigned int id;
const char *errstr;
struct addrinfo hints, *res;
int error;
if (idopt == NULL)
errx(1, "source limiter id unspecified");
if (source == NULL)
errx(1, "source limiter address unspecified");
id = strtonum(idopt, PF_SOURCELIM_ID_MIN, PF_SOURCELIM_ID_MAX, &errstr);
if (errstr != NULL)
errx(1, "source limiter id: %s", errstr);
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_NUMERICHOST;
error = getaddrinfo(source, NULL, &hints, &res);
if (error != 0)
errx(1, "source limiter address: %s", gai_strerror(error));
clear.id = id;
clear.af = res->ai_family;
copy_satopfaddr(&clear.addr, res->ai_addr);
freeaddrinfo(res);
error = pfctl_source_clear(pfh, &clear);
switch (error) {
case 0:
break;
case ESRCH:
errx(1, "source limiter %u not found", id);
case ENOENT:
errx(1, "source limiter %u: %s not found", id, source);
default:
err(1, "kill source limiter %u entry %s", id, source);
}
}
int
pfctl_show_eth_rules(int dev, char *path, int opts, enum pfctl_show format,
char *anchorname, int depth, int wildcard)
{
char anchor_call[MAXPATHLEN];
struct pfctl_eth_rules_info info;
struct pfctl_eth_rule rule;
int brace;
int dotitle = opts & PF_OPT_SHOWALL;
int len = strlen(path);
int ret;
char *npath, *p;
if ((p = strrchr(anchorname, '/')) != NULL &&
p[1] == '*' && p[2] == '\0') {
p[0] = '\0';
}
if (anchorname[0] == '/') {
if ((npath = calloc(1, MAXPATHLEN)) == NULL)
errx(1, "calloc");
snprintf(npath, MAXPATHLEN, "%s", anchorname);
} else {
if (path[0])
snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
else
snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
npath = path;
}
if (wildcard && (opts & PF_OPT_RECURSE)) {
struct pfctl_eth_rulesets_info ri;
u_int32_t mnr, nr;
if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, npath)) != 0) {
if (ret == EINVAL) {
fprintf(stderr, "Anchor '%s' "
"not found.\n", anchorname);
} else {
warnc(ret, "DIOCGETETHRULESETS");
return (-1);
}
}
mnr = ri.nr;
pfctl_print_eth_rule_counters(&rule, opts);
for (nr = 0; nr < mnr; ++nr) {
struct pfctl_eth_ruleset_info rs;
if ((ret = pfctl_get_eth_ruleset(dev, npath, nr, &rs)) != 0)
errc(1, ret, "DIOCGETETHRULESET");
INDENT(depth, !(opts & PF_OPT_VERBOSE));
printf("anchor \"%s\" all {\n", rs.name);
pfctl_show_eth_rules(dev, npath, opts,
format, rs.name, depth + 1, 0);
INDENT(depth, !(opts & PF_OPT_VERBOSE));
printf("}\n");
}
path[len] = '\0';
return (0);
}
if ((ret = pfctl_get_eth_rules_info(dev, &info, path)) != 0) {
warnc(ret, "DIOCGETETHRULES");
return (-1);
}
for (int nr = 0; nr < info.nr; nr++) {
brace = 0;
INDENT(depth, !(opts & PF_OPT_VERBOSE));
if ((ret = pfctl_get_eth_rule(dev, nr, info.ticket, path, &rule,
opts & PF_OPT_CLRRULECTRS, anchor_call)) != 0) {
warnc(ret, "DIOCGETETHRULE");
return (-1);
}
if (anchor_call[0] &&
((((p = strrchr(anchor_call, '_')) != NULL) &&
(p == anchor_call ||
*(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
brace++;
int aclen = strlen(anchor_call);
if (anchor_call[aclen - 1] == '*')
anchor_call[aclen - 2] = '\0';
}
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, rule.anchor_wildcard);
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, int wildcard)
{
struct pfctl_rules_info ri;
struct pfctl_rule rule;
char anchor_call[MAXPATHLEN];
u_int32_t nr, header = 0;
int numeric = opts & PF_OPT_NUMERIC;
int len = strlen(path), ret = 0;
char *npath, *p;
if ((p = strrchr(anchorname, '/')) != NULL &&
p[1] == '*' && p[2] == '\0') {
p[0] = '\0';
}
if (anchorname[0] == '/') {
if ((npath = calloc(1, MAXPATHLEN)) == NULL)
errx(1, "calloc");
strlcpy(npath, anchorname, MAXPATHLEN);
} else {
if (path[0])
snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
else
snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
npath = path;
}
if (wildcard && (opts & PF_OPT_RECURSE)) {
struct pfioc_ruleset prs;
u_int32_t mnr, nr;
memset(&prs, 0, sizeof(prs));
if ((ret = pfctl_get_rulesets(pfh, npath, &mnr)) != 0)
errx(1, "%s", pf_strerror(ret));
for (nr = 0; nr < mnr; ++nr) {
if ((ret = pfctl_get_ruleset(pfh, npath, nr, &prs)) != 0)
errx(1, "%s", pf_strerror(ret));
INDENT(depth, !(opts & PF_OPT_VERBOSE));
printf("anchor \"%s\" all {\n", prs.name);
pfctl_show_rules(dev, npath, opts,
format, prs.name, depth + 1, 0);
INDENT(depth, !(opts & PF_OPT_VERBOSE));
printf("}\n");
}
path[len] = '\0';
return (0);
}
if (opts & PF_OPT_SHOWALL) {
ret = pfctl_get_rules_info_h(pfh, &ri, PF_PASS, path);
if (ret != 0) {
warnx("%s", pf_strerror(ret));
goto error;
}
header++;
}
ret = pfctl_get_rules_info_h(pfh, &ri, PF_SCRUB, path);
if (ret != 0) {
warnx("%s", pf_strerror(ret));
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 ((ret = pfctl_get_clear_rule_h(pfh, nr, ri.ticket, path, PF_SCRUB,
&rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) != 0) {
warnc(ret, "DIOCGETRULENV");
goto error;
}
if (pfctl_get_pool(dev, &rule.rdr,
nr, ri.ticket, PF_SCRUB, path, PF_RDR) != 0)
goto error;
if (pfctl_get_pool(dev, &rule.nat,
nr, ri.ticket, PF_SCRUB, path, PF_NAT) != 0)
goto error;
if (pfctl_get_pool(dev, &rule.route,
nr, ri.ticket, PF_SCRUB, path, PF_RT) != 0)
goto error;
switch (format) {
case PFCTL_SHOW_LABELS:
break;
case PFCTL_SHOW_RULES:
if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
labels = 1;
print_rule(&rule, anchor_call, opts, numeric);
if (!(rule.rule_flag & PFRULE_EXPIRED) ||
(opts & (PF_OPT_VERBOSE2|PF_OPT_DEBUG)))
printf("\n");
pfctl_print_rule_counters(&rule, opts);
break;
case PFCTL_SHOW_NOTHING:
break;
}
pfctl_clear_pool(&rule.rdr);
pfctl_clear_pool(&rule.nat);
pfctl_clear_pool(&rule.route);
}
ret = pfctl_get_rules_info_h(pfh, &ri, PF_PASS, path);
if (ret != 0) {
warnc(ret, "DIOCGETRULES");
goto error;
}
for (nr = 0; nr < ri.nr; ++nr) {
if ((ret = pfctl_get_clear_rule_h(pfh, nr, ri.ticket, path, PF_PASS,
&rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) != 0) {
warnc(ret, "DIOCGETRULE");
goto error;
}
if (pfctl_get_pool(dev, &rule.rdr,
nr, ri.ticket, PF_PASS, path, PF_RDR) != 0)
goto error;
if (pfctl_get_pool(dev, &rule.nat,
nr, ri.ticket, PF_PASS, path, PF_NAT) != 0)
goto error;
if (pfctl_get_pool(dev, &rule.route,
nr, ri.ticket, PF_PASS, path, PF_RT) != 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);
}
if (anchor_call[0] &&
(((p = strrchr(anchor_call, '/')) ?
p[1] == '_' : anchor_call[0] == '_') ||
opts & PF_OPT_RECURSE)) {
pfctl_show_rules(dev, npath, opts, format,
anchor_call, depth, rule.anchor_wildcard);
}
break;
}
case PFCTL_SHOW_RULES:
if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
labels = 1;
INDENT(depth, !(opts & PF_OPT_VERBOSE));
print_rule(&rule, anchor_call, opts, numeric);
if (anchor_call[0] &&
(((p = strrchr(anchor_call, '/')) ?
p[1] == '_' : anchor_call[0] == '_') ||
opts & PF_OPT_RECURSE)) {
printf(" {\n");
pfctl_print_rule_counters(&rule, opts);
pfctl_show_rules(dev, npath, opts, format,
anchor_call, depth + 1,
rule.anchor_wildcard);
INDENT(depth, !(opts & PF_OPT_VERBOSE));
printf("}\n");
} else {
printf("\n");
pfctl_print_rule_counters(&rule, opts);
}
break;
case PFCTL_SHOW_NOTHING:
break;
}
pfctl_clear_pool(&rule.rdr);
pfctl_clear_pool(&rule.nat);
}
error:
path[len] = '\0';
return (ret);
}
int
pfctl_show_nat(int dev, const char *path, int opts, char *anchorname, int depth,
int wildcard)
{
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 ret;
int len = strlen(path);
char *npath, *p;
if ((p = strrchr(anchorname, '/')) != NULL &&
p[1] == '*' && p[2] == '\0') {
p[0] = '\0';
}
if ((npath = calloc(1, MAXPATHLEN)) == NULL)
errx(1, "calloc");
if (anchorname[0] == '/') {
snprintf(npath, MAXPATHLEN, "%s", anchorname);
} else {
snprintf(npath, MAXPATHLEN, "%s", path);
if (npath[0])
snprintf(&npath[len], MAXPATHLEN - len, "/%s", anchorname);
else
snprintf(&npath[len], MAXPATHLEN - len, "%s", anchorname);
}
if (wildcard && (opts & PF_OPT_RECURSE)) {
struct pfioc_ruleset prs;
u_int32_t mnr, nr;
memset(&prs, 0, sizeof(prs));
if ((ret = pfctl_get_rulesets(pfh, npath, &mnr)) != 0) {
if (ret == EINVAL)
fprintf(stderr, "NAT anchor '%s' "
"not found.\n", anchorname);
else
errx(1, "%s", pf_strerror(ret));
}
for (nr = 0; nr < mnr; ++nr) {
if ((ret = pfctl_get_ruleset(pfh, npath, nr, &prs)) != 0)
errx(1, "%s", pf_strerror(ret));
INDENT(depth, !(opts & PF_OPT_VERBOSE));
printf("nat-anchor \"%s\" all {\n", prs.name);
pfctl_show_nat(dev, npath, opts,
prs.name, depth + 1, 0);
INDENT(depth, !(opts & PF_OPT_VERBOSE));
printf("}\n");
}
npath[len] = '\0';
return (0);
}
for (i = 0; i < 3; i++) {
ret = pfctl_get_rules_info_h(pfh, &ri, nattype[i], npath);
if (ret != 0) {
warnc(ret, "DIOCGETRULES");
return (-1);
}
for (nr = 0; nr < ri.nr; ++nr) {
INDENT(depth, !(opts & PF_OPT_VERBOSE));
if ((ret = pfctl_get_rule_h(pfh, nr, ri.ticket, npath,
nattype[i], &rule, anchor_call)) != 0) {
warnc(ret, "DIOCGETRULE");
return (-1);
}
if (pfctl_get_pool(dev, &rule.rdr, nr,
ri.ticket, nattype[i], npath, PF_RDR) != 0)
return (-1);
if (pfctl_get_pool(dev, &rule.nat, nr,
ri.ticket, nattype[i], npath, PF_NAT) != 0)
return (-1);
if (pfctl_get_pool(dev, &rule.route, nr,
ri.ticket, nattype[i], npath, PF_RT) != 0)
return (-1);
if (dotitle) {
pfctl_print_title("TRANSLATION RULES:");
dotitle = 0;
}
print_rule(&rule, anchor_call,
opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
if (anchor_call[0] &&
(((p = strrchr(anchor_call, '/')) ?
p[1] == '_' : anchor_call[0] == '_') ||
opts & PF_OPT_RECURSE)) {
printf(" {\n");
pfctl_print_rule_counters(&rule, opts);
pfctl_show_nat(dev, npath, opts, anchor_call,
depth + 1, rule.anchor_wildcard);
INDENT(depth, !(opts & PF_OPT_VERBOSE));
printf("}\n");
} else {
printf("\n");
pfctl_print_rule_counters(&rule, opts);
}
}
}
return (0);
}
static int
pfctl_print_src_node(struct pfctl_src_node *sn, void *arg)
{
int *opts = (int *)arg;
if (*opts & PF_OPT_SHOWALL) {
pfctl_print_title("SOURCE TRACKING NODES:");
*opts &= ~PF_OPT_SHOWALL;
}
print_src_node(sn, *opts);
return (0);
}
int
pfctl_show_src_nodes(int dev, int opts)
{
int error;
error = pfctl_get_srcnodes(pfh, pfctl_print_src_node, &opts);
return (error);
}
struct pfctl_show_state_arg {
int opts;
int dotitle;
const char *iface;
};
static int
pfctl_show_state(struct pfctl_state *s, void *arg)
{
struct pfctl_show_state_arg *a = (struct pfctl_show_state_arg *)arg;
if (a->dotitle) {
pfctl_print_title("STATES:");
a->dotitle = 0;
}
print_state(s, a->opts);
return (0);
}
int
pfctl_show_states(int dev, const char *iface, int opts)
{
struct pfctl_show_state_arg arg;
struct pfctl_state_filter filter = {};
if (iface != NULL)
strlcpy(filter.ifname, iface, IFNAMSIZ);
arg.opts = opts;
arg.dotitle = opts & PF_OPT_SHOWALL;
arg.iface = iface;
if (pfctl_get_states_h(pfh, &filter, pfctl_show_state, &arg))
return (-1);
return (0);
}
int
pfctl_show_status(int dev, int opts)
{
struct pfctl_status *status;
struct pfctl_syncookies cookies;
int ret;
if ((status = pfctl_get_status_h(pfh)) == NULL) {
warn("DIOCGETSTATUS");
return (-1);
}
if ((ret = pfctl_get_syncookies(dev, &cookies)) != 0) {
pfctl_free_status(status);
warnc(ret, "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_h(pfh)) == 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)
{
uint32_t seconds;
int i;
int ret;
if (opts & PF_OPT_SHOWALL)
pfctl_print_title("TIMEOUTS:");
for (i = 0; pf_timeouts[i].name; i++) {
if ((ret = pfctl_get_timeout(pfh, pf_timeouts[i].timeout, &seconds)) != 0)
errc(1, ret, "DIOCGETTIMEOUT");
printf("%-20s %10d", pf_timeouts[i].name, 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)
{
unsigned int limit;
int i;
int ret;
if (opts & PF_OPT_SHOWALL)
pfctl_print_title("LIMITS:");
for (i = 0; pf_limits[i].name; i++) {
if ((ret = pfctl_get_limit(pfh, pf_limits[i].index, &limit)) != 0)
errc(1, ret, "DIOCGETLIMIT");
printf("%-13s ", pf_limits[i].name);
if (limit == UINT_MAX)
printf("unlimited\n");
else
printf("hard limit %8u\n", limit);
}
return (0);
}
void
pfctl_read_limits(struct pfctl_handle *h)
{
int i;
for (i = 0; pf_limits[i].name; i++) {
if (pfctl_get_limit(h, i, &limit_curr[i]))
err(1, "DIOCGETLIMIT");
}
}
void
pfctl_restore_limits(void)
{
int i;
if (pfh == NULL)
return;
for (i = 0; pf_limits[i].name; i++) {
if (pfctl_set_limit(pfh, i, limit_curr[i]))
warn("DIOCSETLIMIT (%s)", pf_limits[i].name);
}
}
void
pfctl_show_creators(int opts)
{
int ret;
uint32_t creators[16];
size_t count = nitems(creators);
ret = pfctl_get_creatorids(pfh, creators, &count);
if (ret != 0)
errx(ret, "Failed to retrieve creators");
printf("Creator IDs:\n");
for (size_t i = 0; i < count; i++)
printf("%08x\n", creators[i]);
}
int
pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, int which)
{
struct pfctl_pooladdr *pa;
int ret;
TAILQ_FOREACH(pa, &p->list, entries) {
memcpy(&pf->paddr.addr, pa, sizeof(struct pfctl_pooladdr));
pf->paddr.af = pa->af;
if ((pf->opts & PF_OPT_NOACTION) == 0) {
if ((ret = pfctl_add_addr(pf->h, &pf->paddr, which)) != 0)
errc(1, ret, "DIOCADDADDR");
}
}
return (0);
}
void
pfctl_init_rule(struct pfctl_rule *r)
{
memset(r, 0, sizeof(struct pfctl_rule));
TAILQ_INIT(&(r->rdr.list));
TAILQ_INIT(&(r->nat.list));
TAILQ_INIT(&(r->route.list));
}
void
pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r)
{
u_int8_t rs_num;
struct pfctl_rule *rule;
struct pfctl_ruleset *rs;
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 ((rule = calloc(1, sizeof(*rule))) == NULL)
err(1, "calloc");
bcopy(r, rule, sizeof(*rule));
TAILQ_INIT(&rule->rdr.list);
pfctl_move_pool(&r->rdr, &rule->rdr);
TAILQ_INIT(&rule->nat.list);
pfctl_move_pool(&r->nat, &rule->nat);
TAILQ_INIT(&rule->route.list);
pfctl_move_pool(&r->route, &rule->route);
TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
}
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) {
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);
}
void
pfctl_load_statelim(struct pfctl *pf, struct pfctl_statelim *stlim)
{
int error;
if (pf->opts & PF_OPT_VERBOSE)
print_statelim(&stlim->ioc);
if (pf->opts & PF_OPT_NOACTION)
return;
error = pfctl_state_limiter_add(pf->h, &stlim->ioc);
if (error) {
errc(1, error, "DIOCADDSTATELIM %s id %u", stlim->ioc.name,
stlim->ioc.id);
}
}
void
pfctl_load_statelims(struct pfctl *pf)
{
struct pfctl_statelim *stlim;
u_int32_t ticket = 0;
if ((pf->opts & PF_OPT_NOACTION) == 0)
ticket = pfctl_get_ticket(pf->trans, PF_RULESET_FILTER, "");
RB_FOREACH(stlim, pfctl_statelim_ids, &pf->statelim_ids)
{
stlim->ioc.ticket = ticket;
pfctl_load_statelim(pf, stlim);
}
}
void
pfctl_load_sourcelim(struct pfctl *pf, struct pfctl_source_lim *srlim)
{
int error;
if (pf->opts & PF_OPT_VERBOSE)
print_sourcelim(srlim);
if (pf->opts & PF_OPT_NOACTION)
return;
error = pfctl_source_limiter_add(pf->h, srlim);
if (error != 0) {
errc(1, error, "DIOCADDSOURCELIM %s id %u", srlim->name,
srlim->id);
}
}
void
pfctl_load_sourcelims(struct pfctl *pf)
{
struct pfctl_sourcelim *srlim;
uint32_t ticket = 0;
if ((pf->opts & PF_OPT_NOACTION) == 0)
ticket = pfctl_get_ticket(pf->trans, PF_RULESET_FILTER, "");
RB_FOREACH(srlim, pfctl_sourcelim_ids, &pf->sourcelim_ids)
{
srlim->ioc.ticket = ticket;
pfctl_load_sourcelim(pf, &srlim->ioc);
}
}
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);
int ret;
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 ((ret = pfctl_add_eth_rule(pf->dev, r, anchor, name,
pf->eth_ticket)) != 0)
errc(1, ret, "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);
}
static int
pfctl_load_tables(struct pfctl *pf, char *path, struct pfctl_anchor *a,
int rs_num)
{
struct pfr_ktable *kt, *ktw;
struct pfr_uktable *ukt;
char anchor_path[PF_ANCHOR_MAXPATH];
int e;
RB_FOREACH_SAFE(kt, pfr_ktablehead, &pfr_ktables, ktw) {
if (strcmp(kt->pfrkt_anchor, a->path) != 0)
continue;
if (path != NULL && *path) {
strlcpy(anchor_path, kt->pfrkt_anchor,
sizeof(anchor_path));
snprintf(kt->pfrkt_anchor, PF_ANCHOR_MAXPATH, "%s/%s",
path, anchor_path);
}
ukt = (struct pfr_uktable *)kt;
e = pfr_ina_define(&ukt->pfrukt_t, ukt->pfrukt_addrs.pfrb_caddr,
ukt->pfrukt_addrs.pfrb_size, NULL, NULL,
pf->anchor->ruleset.tticket,
ukt->pfrukt_init_addr ? PFR_FLAG_ADDRSTOO : 0);
if (e != 0)
err(1, "%s pfr_ina_define() %s@%s", __func__,
kt->pfrkt_name, kt->pfrkt_anchor);
RB_REMOVE(pfr_ktablehead, &pfr_ktables, kt);
pfr_buf_clear(&ukt->pfrukt_addrs);
free(ukt);
}
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("%s: "
"pfctl_ruleset_trans %d\n", __func__, error);
goto error;
}
} else if (pf->opts & PF_OPT_VERBOSE)
printf("\n");
}
if (pf->optimize && rs_num == PF_RULESET_FILTER &&
(error = pfctl_optimize_ruleset(pf, rs)) != 0)
goto error;
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;
if ((error = pfctl_load_tables(pf, path, r->anchor, rs_num)))
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;
uint32_t ticket;
char anchor[PF_ANCHOR_NAME_SIZE];
int len = strlen(path);
int error;
bool was_present;
if ((pf->opts & PF_OPT_NOACTION) == 0) {
if (pf->trans == NULL)
errx(1, "pfctl_load_rule: no transaction");
ticket = pfctl_get_ticket(pf->trans, rs_num, path);
if (rs_num == PF_RULESET_FILTER)
pf->anchor->ruleset.tticket = ticket;
}
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 = "";
was_present = false;
if ((pf->opts & PF_OPT_NOACTION) == 0) {
if ((pf->opts & PF_OPT_NOACTION) == 0) {
if ((error = pfctl_begin_addrs(pf->h,
&pf->paddr.ticket)) != 0)
errc(1, error, "DIOCBEGINADDRS");
}
if (pfctl_add_pool(pf, &r->rdr, PF_RDR))
return (1);
if (pfctl_add_pool(pf, &r->nat, PF_NAT))
return (1);
if (pfctl_add_pool(pf, &r->route, PF_RT))
return (1);
error = pfctl_add_rule_h(pf->h, r, anchor, name, ticket,
pf->paddr.ticket);
switch (error) {
case 0:
break;
case EEXIST:
was_present = true;
break;
default:
errc(1, error, "DIOCADDRULE");
}
}
if (pf->opts & PF_OPT_VERBOSE || was_present) {
INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
print_rule(r, name,
pf->opts & PF_OPT_VERBOSE2,
pf->opts & PF_OPT_NUMERIC);
if (was_present)
printf(" -- rule was already present\n");
}
path[len] = '\0';
pfctl_clear_pool(&r->rdr);
pfctl_clear_pool(&r->nat);
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(...) do { warn(__VA_ARGS__); goto _error; } while(0)
#define ERRX(...) do { warnx(__VA_ARGS__); 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 = NULL;
int osize;
RB_INIT(&pf_anchors);
memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
pf_init_ruleset(&pf_main_anchor.ruleset);
memset(&pf, 0, sizeof(pf));
memset(&trs, 0, sizeof(trs));
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;
pf.trans = &buf;
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("%s: calloc", __func__);
if (strlcpy(trs.pfrt_anchor, anchorname,
sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
ERRX("%s: strlcpy", __func__);
pf.dev = dev;
pf.h = pfh;
pf.opts = opts;
pf.optimize = optimize;
pf.loadopt = loadopt;
RB_INIT(&pf.statelim_ids);
RB_INIT(&pf.statelim_nms);
RB_INIT(&pf.sourcelim_ids);
RB_INIT(&pf.sourcelim_nms);
if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
ERRX("%s: calloc", __func__);
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, "%s: strlcpy", __func__);
if (strlcpy(pf.anchor->name, anchorname,
sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
errx(1, "%s: strlcpy", __func__);
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);
if ((pf.eanchor = calloc(1, sizeof(*pf.eanchor))) == NULL)
ERRX("%s: calloc", __func__);
if (strlcpy(pf.eanchor->path, anchorname,
sizeof(pf.eanchor->path)) >= sizeof(pf.eanchor->path))
errx(1, "%s: strlcpy", __func__);
if (strlcpy(pf.eanchor->name, anchorname,
sizeof(pf.eanchor->name)) >= sizeof(pf.eanchor->name))
errx(1, "%s: strlcpy", __func__);
ethrs = &pf.eanchor->ruleset;
pf_init_eth_ruleset(ethrs);
ethrs->anchor = pf.eanchor;
pf.eastack[0] = pf.eanchor;
if ((opts & PF_OPT_NOACTION) == 0) {
if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor, true))
ERRX("%s", __func__);
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 (anchorname[0] == '\0' && pf.loadopt & PFCTL_FLAG_FILTER) {
pfctl_load_statelims(&pf);
pfctl_load_sourcelims(&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");
if (trans == NULL) {
if (pfctl_load_anchors(dev, &pf) == -1)
ERRX("load anchors");
if ((opts & PF_OPT_NOACTION) == 0) {
if (!anchorname[0] && pfctl_load_options(&pf))
goto _error;
if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
ERR("DIOCXCOMMIT");
}
}
free(path);
return (0);
_error:
if (trans == NULL) {
if ((opts & PF_OPT_NOACTION) == 0)
if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
err(1, "DIOCXROLLBACK");
exit(1);
} else {
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_SCTP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
pf->timeout[PFTM_SCTP_OPENING] = PFTM_TCP_OPENING_VAL;
pf->timeout[PFTM_SCTP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
pf->timeout[PFTM_SCTP_CLOSING] = PFTM_TCP_CLOSING_VAL;
pf->timeout[PFTM_SCTP_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] = (limit_curr[PF_LIMIT_SRC_NODES] == 0) ?
PFSNODE_HIWAT : limit_curr[PF_LIMIT_SRC_NODES];
pf->limit[PF_LIMIT_TABLE_ENTRIES] =
(limit_curr[PF_LIMIT_TABLE_ENTRIES] == 0) ?
PFR_KENTRY_HIWAT : limit_curr[PF_LIMIT_TABLE_ENTRIES];
pf->limit[PF_LIMIT_ANCHORS] = (limit_curr[PF_LIMIT_ANCHORS] == 0) ?
PF_ANCHOR_HIWAT : limit_curr[PF_LIMIT_ANCHORS];
pf->debug = PF_DEBUG_URGENT;
pf->reassemble = 0;
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);
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 (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;
}
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;
}
if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
if (pfctl_load_debug(pf, pf->debug))
error = 1;
if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
if (pfctl_load_logif(pf, pf->ifname))
error = 1;
if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
if (pfctl_load_hostid(pf, pf->hostid))
error = 1;
if (!(pf->opts & PF_OPT_MERGE) || pf->reass_set)
if (pfctl_load_reassembly(pf, pf->reassemble))
error = 1;
if (pfctl_set_keepcounters(pf->dev, pf->keep_counters))
error = 1;
if (pfctl_load_syncookies(pf, pf->syncookies))
error = 1;
return (error);
}
int
pfctl_apply_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);
if ((pf->opts & PF_OPT_NOACTION) == 0)
pfctl_load_options(pf);
return (0);
}
int
pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
{
static int restore_limit_handler_armed = 0;
if (pfctl_set_limit(pf->h, index, limit)) {
if (errno == EBUSY)
warnx("Current pool size exceeds requested %s limit %u",
pf_limits[index].name, limit);
else
warnx("Cannot set %s limit to %u",
pf_limits[index].name, limit);
return (1);
} else if (restore_limit_handler_armed == 0) {
atexit(pfctl_restore_limits);
restore_limit_handler_armed = 1;
}
return (0);
}
int
pfctl_apply_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)
{
if (pfctl_set_timeout(pf->h, timeout, seconds)) {
warnx("DIOCSETTIMEOUT");
return (1);
}
return (0);
}
int
pfctl_set_reassembly(struct pfctl *pf, int on, int nodf)
{
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
return (0);
pf->reass_set = 1;
if (on) {
pf->reassemble = PF_REASS_ENABLED;
if (nodf)
pf->reassemble |= PF_REASS_NODF;
} else {
pf->reassemble = 0;
}
if (pf->opts & PF_OPT_VERBOSE)
printf("set reassemble %s %s\n", on ? "yes" : "no",
nodf ? "no-df" : "");
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_apply_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)
{
if (ifname != NULL && strlen(ifname) >= IFNAMSIZ) {
warnx("pfctl_load_logif: strlcpy");
return (1);
}
return (pfctl_set_statusif(pfh, ifname ? ifname : ""));
}
void
pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
{
if ((loadopt & PFCTL_FLAG_OPTION) == 0)
return;
HTONL(hostid);
pf->hostid = hostid;
pf->hostid_set = 1;
if (pf->opts & PF_OPT_VERBOSE)
printf("set hostid 0x%08x\n", ntohl(hostid));
}
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_reassembly(struct pfctl *pf, u_int32_t reassembly)
{
if (ioctl(dev, DIOCSETREASS, &reassembly)) {
warnx("DIOCSETREASS");
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 {
warnx("king bula ate all syncookies");
return (1);
}
}
pf->syncookies = val;
return (0);
}
int
pfctl_do_set_debug(struct pfctl *pf, char *d)
{
u_int32_t level;
int ret;
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 ((ret = pfctl_set_debug(pfh, level)) != 0)
errc(1, ret, "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 (pfctl_set_debug(pf->h, 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;
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))
pfctl_err(pf->opts, 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)
{
int ret;
if ((ret = pfctl_set_debug(pfh, level)) != 0)
errc(1, ret, "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_walk_show(int opts, struct pfioc_ruleset *pr, void *warg)
{
if (pr->path[0]) {
if (pr->path[0] != '_' || (opts & PF_OPT_VERBOSE))
printf(" %s/%s\n", pr->path, pr->name);
} else if (pr->name[0] != '_' || (opts & PF_OPT_VERBOSE))
printf(" %s\n", pr->name);
return (0);
}
int
pfctl_walk_get(int opts, struct pfioc_ruleset *pr, void *warg)
{
struct pfr_anchoritem *pfra;
struct pfr_anchors *anchors;
int e;
anchors = (struct pfr_anchors *)warg;
pfra = malloc(sizeof(*pfra));
if (pfra == NULL)
err(1, "%s", __func__);
if (pr->path[0])
e = asprintf(&pfra->pfra_anchorname, "%s/%s", pr->path,
pr->name);
else
e = asprintf(&pfra->pfra_anchorname, "%s", pr->name);
if (e == -1)
err(1, "%s", __func__);
SLIST_INSERT_HEAD(anchors, pfra, pfra_sle);
return (0);
}
int
pfctl_walk_anchors(int dev, int opts, const char *anchor,
int(walkf)(int, struct pfioc_ruleset *, void *), void *warg)
{
struct pfioc_ruleset pr;
u_int32_t mnr, nr;
int ret;
memset(&pr, 0, sizeof(pr));
if ((ret = pfctl_get_rulesets(pfh, anchor, &mnr)) != 0)
errx(1, "%s", pf_strerror(ret));
for (nr = 0; nr < mnr; ++nr) {
char sub[MAXPATHLEN];
if ((ret = pfctl_get_ruleset(pfh, anchor, nr, &pr)) != 0)
errc(1, ret, "DIOCGETRULESET");
if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
continue;
sub[0] = '\0';
if (walkf(opts, &pr, warg))
return (-1);
if (pr.path[0])
snprintf(sub, sizeof(sub), "%s/%s", pr.path, pr.name);
else
snprintf(sub, sizeof(sub), "%s", pr.name);
if (pfctl_walk_anchors(dev, opts, sub, walkf, warg))
return (-1);
}
return (0);
}
int
pfctl_show_anchors(int dev, int opts, char *anchor)
{
return (
pfctl_walk_anchors(dev, opts, anchor, pfctl_walk_show, NULL));
}
struct pfr_anchors *
pfctl_get_anchors(int dev, const char *anchor, int opts)
{
struct pfioc_ruleset pr;
static struct pfr_anchors anchors;
char anchorbuf[PATH_MAX];
char *n;
SLIST_INIT(&anchors);
memset(&pr, 0, sizeof(pr));
if (*anchor != '\0') {
strlcpy(anchorbuf, anchor, sizeof(anchorbuf));
n = dirname(anchorbuf);
if (n[0] != '.' && n[1] != '\0')
strlcpy(pr.path, n, sizeof(pr.path));
strlcpy(anchorbuf, anchor, sizeof(anchorbuf));
n = basename(anchorbuf);
if (n != NULL)
strlcpy(pr.name, n, sizeof(pr.name));
}
pfctl_walk_get(opts, &pr, &anchors);
if (pfctl_walk_anchors(dev, opts, anchor, pfctl_walk_get, &anchors))
errx(1, "%s failed to retrieve list of anchors, can't continue",
__func__);
return (&anchors);
}
int
pfctl_call_cleartables(int dev, int opts, struct pfr_anchoritem *pfra)
{
opts |= PF_OPT_QUIET;
return ((pfctl_do_clear_tables(pfra->pfra_anchorname, opts) == -1) ?
1 : 0);
}
int
pfctl_call_clearrules(int dev, int opts, struct pfr_anchoritem *pfra)
{
opts |= PF_OPT_QUIET;
return (pfctl_flush_rules(dev, opts, pfra->pfra_anchorname));
}
int
pfctl_call_clearanchors(int dev, int opts, struct pfr_anchoritem *pfra)
{
int rv = 0;
rv |= pfctl_call_cleartables(dev, opts, pfra);
rv |= pfctl_call_clearrules(dev, opts, pfra);
return (rv);
}
int
pfctl_call_showtables(int dev, int opts, struct pfr_anchoritem *pfra)
{
pfctl_show_tables(pfra->pfra_anchorname, opts);
return (0);
}
int
pfctl_recurse(int dev, int opts, const char *anchorname,
int(*walkf)(int, int, struct pfr_anchoritem *))
{
int rv = 0;
struct pfr_anchors *anchors;
struct pfr_anchoritem *pfra, *pfra_save;
anchors = pfctl_get_anchors(dev, anchorname, opts);
opts |= PF_OPT_IGNFAIL;
if ((opts & PF_OPT_CALLSHOW) == 0)
printf("Removing:\n");
SLIST_FOREACH_SAFE(pfra, anchors, pfra_sle, pfra_save) {
if ((opts & PF_OPT_CALLSHOW) == 0)
printf(" %s\n",
(*pfra->pfra_anchorname == '\0') ? "/" :
pfra->pfra_anchorname);
rv |= walkf(dev, opts, pfra);
SLIST_REMOVE(anchors, pfra, pfr_anchoritem, pfra_sle);
free(pfra->pfra_anchorname);
free(pfra);
}
return (rv);
}
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)
errc(1, ret, "DIOCGETETHRULESETS");
return (-1);
}
for (int nr = 0; nr < ri.nr; nr++) {
char sub[MAXPATHLEN];
if ((ret = pfctl_get_eth_ruleset(dev, anchorname, nr, &rs)) != 0)
errc(1, ret, "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
pfctl_lookup_id(const char *cmd, const struct pfctl_opt_id *opt_ids)
{
const struct pfctl_opt_id *opt_id;
int id = 0;
size_t cmdlen = strlen(cmd);
for (opt_id = opt_ids; opt_id->id != 0; opt_id++) {
if (strncmp(cmd, opt_id->name, cmdlen) == 0) {
if (id != 0)
errx(1, "%s is ambiguous", cmd);
id = opt_id->id;
}
}
return (id);
}
void
pfctl_reset(int dev, int opts)
{
struct pfctl pf;
struct pfr_buffer t;
int i;
memset(&pf, 0, sizeof(pf));
pf.dev = dev;
pf.h = pfh;
pfctl_init_options(&pf);
pf.debug_set = 1;
pf.reass_set = 1;
pf.syncookieswat_set = 1;
pf.ifname = strdup("none");
if (pf.ifname == NULL)
err(1, "%s: strdup", __func__);
pf.ifname_set = 1;
memset(&t, 0, sizeof(t));
t.pfrb_type = PFRB_TRANS;
if (pfctl_trans(dev, &t, DIOCXBEGIN, 0))
err(1, "%s: DIOCXBEGIN", __func__);
for (i = 0; pf_limits[i].name; i++)
pf.limit_set[pf_limits[i].index] = 1;
for (i = 0; pf_timeouts[i].name; i++)
pf.timeout_set[pf_timeouts[i].timeout] = 1;
pfctl_load_options(&pf);
if (pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
err(1, "%s: DIOCXCOMMIT", __func__);
pfctl_clear_interface_flags(dev, opts);
}
int
main(int argc, char *argv[])
{
int ch;
int mode = O_RDONLY;
int opts = 0;
int optimize = PF_OPTIMIZE_BASIC;
char anchorname[MAXPATHLEN];
char *path;
const char *idopt = NULL;
if (argc < 2)
usage();
while ((ch = getopt(argc, argv,
"a:AdD:eqf:F:ghi:I:k:K:mMnNOo:Pp:rRs:St: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 'I':
idopt = optarg;
break;
case 'k':
if (state_killers >= 2) {
warnx("can only specify -k twice");
usage();
}
state_kill[state_killers++] = optarg;
mode = O_RDWR;
break;
case 'K':
if (src_node_killers >= 2) {
warnx("can only specify -K twice");
usage();
}
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_id(optarg, showopt_list);
if (showopt == 0) {
warnx("Unknown show modifier '%s'", optarg);
usage();
}
break;
case 'S':
opts |= PF_OPT_NODNS;
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':
default:
usage();
}
}
if ((opts & PF_OPT_NODNS) && (opts & PF_OPT_USEDNS))
errx(1, "-N and -r are mutually exclusive");
if ((tblcmdopt == NULL) ^ (tableopt == NULL) &&
(tblcmdopt == NULL || *tblcmdopt != 'l'))
usage();
if (tblcmdopt != NULL) {
argc -= optind;
argv += optind;
ch = *tblcmdopt;
if (ch == 'l') {
loadopt |= PFCTL_FLAG_TABLE;
tblcmdopt = NULL;
} else
mode = strchr("st", ch) ? O_RDONLY : O_RDWR;
} else if (argc != optind) {
warnx("unknown command line argument: %s ...", argv[optind]);
usage();
}
if (loadopt == 0)
loadopt = ~0;
memset(anchorname, 0, sizeof(anchorname));
if (anchoropt != NULL) {
int len = strlen(anchoropt);
if (anchoropt[0] == '\0')
errx(1, "anchor name must not be empty");
if (mode == O_RDONLY && showopt == 0 && tblcmdopt == NULL) {
warnx("anchors apply to -f, -F, -s, and -T only");
usage();
}
if (mode == O_RDWR && tblcmdopt == NULL &&
(anchoropt[0] == '_' || strstr(anchoropt, "/_") != NULL))
errx(1, "anchor names beginning with '_' cannot "
"be modified from the command line");
if (len >= 1 && 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;
opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
clearopt = debugopt = NULL;
showopt = 0;
#if !defined(ENABLE_ALTQ)
altqsupport = 0;
#else
altqsupport = 1;
#endif
}
pfh = pfctl_open(pf_device);
if (pfh == NULL)
err(1, "Failed to open netlink");
if ((opts & PF_OPT_NOACTION) == 0) {
pfctl_read_limits(pfh);
}
if (opts & PF_OPT_DISABLE)
if (pfctl_disable(dev, opts))
exit_val = 1;
if ((path = calloc(1, MAXPATHLEN)) == NULL)
errx(1, "%s: calloc", __func__);
switch (showopt) {
case SHOWOPT_NONE:
break;
case SHOWOPT_ANCHORS:
pfctl_show_anchors(dev, opts, anchorname);
if (opts & PF_OPT_VERBOSE2)
printf("Ethernet:\n");
pfctl_show_eth_anchors(dev, opts, anchorname);
break;
case SHOWOPT_RULES:
pfctl_load_fingerprints(dev, opts);
pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES, anchorname,
0, 0);
break;
case SHOWOPT_LABELS:
pfctl_load_fingerprints(dev, opts);
pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS, anchorname,
0, 0);
break;
case SHOWOPT_NAT:
pfctl_load_fingerprints(dev, opts);
pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
break;
case SHOWOPT_QUEUE:
pfctl_show_altq(dev, ifaceopt, opts, opts & PF_OPT_VERBOSE2);
break;
case SHOWOPT_STATES:
pfctl_show_states(dev, ifaceopt, opts);
break;
case SHOWOPT_SOURCES:
pfctl_show_src_nodes(dev, opts);
break;
case SHOWOPT_INFO:
pfctl_show_status(dev, opts);
break;
case SHOWOPT_RUNNING:
exit_val = pfctl_show_running(dev);
break;
case SHOWOPT_TIMEOUTS:
pfctl_show_timeouts(dev, opts);
break;
case SHOWOPT_MEMORY:
pfctl_show_limits(dev, opts);
break;
case SHOWOPT_ETHER:
pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0, 0);
break;
case SHOWOPT_ALL:
opts |= PF_OPT_SHOWALL;
pfctl_load_fingerprints(dev, opts);
pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0, 0);
pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES, anchorname,
0, 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, PFCTL_SHOW_LABELS, anchorname,
0, 0);
pfctl_show_timeouts(dev, opts);
pfctl_show_limits(dev, opts);
pfctl_show_statelims(dev, PFCTL_SHOW_LABELS, opts);
pfctl_show_sourcelims(dev, PFCTL_SHOW_LABELS, opts, idopt);
pfctl_show_tables(anchorname, opts);
pfctl_show_fingerprints(opts);
break;
case SHOWOPT_TABLES:
if (opts & PF_OPT_RECURSE) {
opts |= PF_OPT_CALLSHOW;
pfctl_recurse(dev, opts, anchorname,
pfctl_call_showtables);
} else
pfctl_show_tables(anchorname, opts);
break;
case SHOWOPT_OSFP:
pfctl_load_fingerprints(dev, opts);
pfctl_show_fingerprints(opts);
break;
case SHOWOPT_IFACES:
pfctl_show_ifaces(ifaceopt, opts);
break;
case SHOWOPT_CREATORIDS:
pfctl_show_creators(opts);
break;
case SHOWOPT_STATELIMS:
pfctl_show_statelims(dev, PFCTL_SHOW_LABELS, opts);
break;
case SHOWOPT_SOURCELIMS:
pfctl_show_sourcelims(dev, PFCTL_SHOW_LABELS, opts, idopt);
break;
}
if ((opts & PF_OPT_CLRRULECTRS) && showopt == 0) {
pfctl_show_eth_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
anchorname, 0, 0);
pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
anchorname, 0, 0);
}
if (clearopt != NULL) {
int mnr;
if ((pfctl_get_rulesets(pfh, anchorname, &mnr)) == ENOENT)
errx(1, "No such anchor %s", anchorname);
switch (*clearopt) {
case 'e':
pfctl_flush_eth_rules(dev, opts, anchorname);
break;
case 'r':
if (opts & PF_OPT_RECURSE)
pfctl_recurse(dev, opts, anchorname,
pfctl_call_clearrules);
else
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(pfh, opts);
break;
case 'a':
if (ifaceopt) {
warnx("don't specify an interface with -Fall");
usage();
}
pfctl_flush_eth_rules(dev, opts, anchorname);
pfctl_flush_rules(dev, opts, anchorname);
pfctl_flush_nat(dev, opts, anchorname);
if (opts & PF_OPT_RECURSE)
pfctl_recurse(dev, opts, anchorname,
pfctl_call_clearanchors);
else {
pfctl_do_clear_tables(anchorname, opts);
pfctl_flush_rules(dev, opts, anchorname);
}
if (!*anchorname) {
pfctl_clear_altq(dev, opts);
pfctl_clear_iface_states(dev, ifaceopt, opts);
pfctl_clear_src_nodes(dev, opts);
pfctl_clear_stats(pfh, opts);
pfctl_clear_fingerprints(dev, opts);
pfctl_reset(dev, opts);
}
break;
case 'o':
pfctl_clear_fingerprints(dev, opts);
break;
case 'T':
if ((opts & PF_OPT_RECURSE) == 0)
pfctl_do_clear_tables(anchorname, opts);
else
pfctl_recurse(dev, opts, anchorname,
pfctl_call_cleartables);
break;
case 'R':
pfctl_reset(dev, 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 if (!strcmp(state_kill[0], "key"))
pfctl_key_kill_states(dev, ifaceopt, opts);
else if (!strcmp(state_kill[0], "source"))
pfctl_kill_source(dev, idopt, state_kill[1], opts);
else
pfctl_net_kill_states(dev, ifaceopt, opts);
}
if (src_node_killers)
pfctl_kill_src_nodes(dev, opts);
if (tblcmdopt != NULL) {
exit_val = pfctl_table(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))
pfctl_get_skip_ifaces();
if (rulesopt != NULL && !(opts & PF_OPT_MERGE) &&
!anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
exit_val = 1;
if (rulesopt != NULL) {
if (pfctl_rules(dev, rulesopt, opts, optimize,
anchorname, NULL))
exit_val = 1;
}
if (opts & PF_OPT_ENABLE)
if (pfctl_enable(dev, opts))
exit_val = 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 (exit_val == 0) {
close(dev);
dev = -1;
pfctl_close(pfh);
pfh = NULL;
}
return (exit_val);
}
char *
pf_strerror(int errnum)
{
switch (errnum) {
case ESRCH:
return "Table does not exist.";
case EINVAL:
case ENOENT:
return "Anchor does not exist.";
default:
return strerror(errnum);
}
}
static inline int
pfctl_statelim_id_cmp(const struct pfctl_statelim *a,
const struct pfctl_statelim *b)
{
uint32_t ida = a->ioc.id;
uint32_t idb = b->ioc.id;
if (ida > idb)
return (1);
if (ida < idb)
return (-1);
return (0);
}
RB_GENERATE(pfctl_statelim_ids, pfctl_statelim, entry, pfctl_statelim_id_cmp);
static inline int
pfctl_statelim_nm_cmp(const struct pfctl_statelim *a,
const struct pfctl_statelim *b)
{
return (strcmp(a->ioc.name, b->ioc.name));
}
RB_GENERATE(pfctl_statelim_nms, pfctl_statelim, entry, pfctl_statelim_nm_cmp);
int
pfctl_add_statelim(struct pfctl *pf, struct pfctl_statelim *stlim)
{
struct pfctl_statelim *ostlim;
ostlim = RB_INSERT(pfctl_statelim_ids, &pf->statelim_ids, stlim);
if (ostlim != NULL)
return (-1);
ostlim = RB_INSERT(pfctl_statelim_nms, &pf->statelim_nms, stlim);
if (ostlim != NULL) {
RB_REMOVE(pfctl_statelim_ids, &pf->statelim_ids, stlim);
return (-1);
}
return (0);
}
struct pfctl_statelim *
pfctl_get_statelim_id(struct pfctl *pf, uint32_t id)
{
struct pfctl_statelim key;
key.ioc.id = id;
return (RB_FIND(pfctl_statelim_nms, &pf->statelim_nms, &key));
}
struct pfctl_statelim *
pfctl_get_statelim_nm(struct pfctl *pf, const char *name)
{
struct pfctl_statelim key;
if (strlcpy(key.ioc.name, name, sizeof(key.ioc.name)) >=
sizeof(key.ioc.name))
return (NULL);
return (RB_FIND(pfctl_statelim_nms, &pf->statelim_nms, &key));
}
static inline int
pfctl_sourcelim_id_cmp(const struct pfctl_sourcelim *a,
const struct pfctl_sourcelim *b)
{
uint32_t ida = a->ioc.id;
uint32_t idb = b->ioc.id;
if (ida > idb)
return (1);
if (ida < idb)
return (-1);
return (0);
}
RB_GENERATE(pfctl_sourcelim_ids, pfctl_sourcelim, entry,
pfctl_sourcelim_id_cmp);
static inline int
pfctl_sourcelim_nm_cmp(const struct pfctl_sourcelim *a,
const struct pfctl_sourcelim *b)
{
return (strcmp(a->ioc.name, b->ioc.name));
}
RB_GENERATE(pfctl_sourcelim_nms, pfctl_sourcelim, entry,
pfctl_sourcelim_nm_cmp);
int
pfctl_add_sourcelim(struct pfctl *pf, struct pfctl_sourcelim *srlim)
{
struct pfctl_sourcelim *osrlim;
osrlim = RB_INSERT(pfctl_sourcelim_ids, &pf->sourcelim_ids, srlim);
if (osrlim != NULL)
return (-1);
osrlim = RB_INSERT(pfctl_sourcelim_nms, &pf->sourcelim_nms, srlim);
if (osrlim != NULL) {
RB_REMOVE(pfctl_sourcelim_ids, &pf->sourcelim_ids, srlim);
return (-1);
}
return (0);
}
struct pfctl_sourcelim *
pfctl_get_sourcelim_id(struct pfctl *pf, uint32_t id)
{
struct pfctl_sourcelim key;
key.ioc.id = id;
return (RB_FIND(pfctl_sourcelim_nms, &pf->sourcelim_nms, &key));
}
struct pfctl_sourcelim *
pfctl_get_sourcelim_nm(struct pfctl *pf, const char *name)
{
struct pfctl_sourcelim key;
if (strlcpy(key.ioc.name, name, sizeof(key.ioc.name)) >=
sizeof(key.ioc.name))
return (NULL);
return (RB_FIND(pfctl_sourcelim_nms, &pf->sourcelim_nms, &key));
}
