7551d83c35
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
378 lines
9.6 KiB
C
378 lines
9.6 KiB
C
/* $OpenBSD: pf_print_state.c,v 1.52 2008/08/12 16:40:18 david Exp $ */
|
|
|
|
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2001 Daniel Hartmeier
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* - Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/endian.h>
|
|
#include <net/if.h>
|
|
#define TCPSTATES
|
|
#include <netinet/tcp_fsm.h>
|
|
#include <net/pfvar.h>
|
|
#include <arpa/inet.h>
|
|
#include <netdb.h>
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "pfctl_parser.h"
|
|
#include "pfctl.h"
|
|
|
|
void print_name(struct pf_addr *, sa_family_t);
|
|
|
|
void
|
|
print_addr(struct pf_addr_wrap *addr, sa_family_t af, int verbose)
|
|
{
|
|
switch (addr->type) {
|
|
case PF_ADDR_DYNIFTL:
|
|
printf("(%s", addr->v.ifname);
|
|
if (addr->iflags & PFI_AFLAG_NETWORK)
|
|
printf(":network");
|
|
if (addr->iflags & PFI_AFLAG_BROADCAST)
|
|
printf(":broadcast");
|
|
if (addr->iflags & PFI_AFLAG_PEER)
|
|
printf(":peer");
|
|
if (addr->iflags & PFI_AFLAG_NOALIAS)
|
|
printf(":0");
|
|
if (verbose) {
|
|
if (addr->p.dyncnt <= 0)
|
|
printf(":*");
|
|
else
|
|
printf(":%d", addr->p.dyncnt);
|
|
}
|
|
printf(")");
|
|
break;
|
|
case PF_ADDR_TABLE:
|
|
if (verbose)
|
|
if (addr->p.tblcnt == -1)
|
|
printf("<%s:*>", addr->v.tblname);
|
|
else
|
|
printf("<%s:%d>", addr->v.tblname,
|
|
addr->p.tblcnt);
|
|
else
|
|
printf("<%s>", addr->v.tblname);
|
|
return;
|
|
case PF_ADDR_RANGE: {
|
|
char buf[48];
|
|
|
|
if (inet_ntop(af, &addr->v.a.addr, buf, sizeof(buf)) == NULL)
|
|
printf("?");
|
|
else
|
|
printf("%s", buf);
|
|
if (inet_ntop(af, &addr->v.a.mask, buf, sizeof(buf)) == NULL)
|
|
printf(" - ?");
|
|
else
|
|
printf(" - %s", buf);
|
|
break;
|
|
}
|
|
case PF_ADDR_ADDRMASK:
|
|
if (PF_AZERO(&addr->v.a.addr, AF_INET6) &&
|
|
PF_AZERO(&addr->v.a.mask, AF_INET6))
|
|
printf("any");
|
|
else {
|
|
char buf[48];
|
|
|
|
if (inet_ntop(af, &addr->v.a.addr, buf,
|
|
sizeof(buf)) == NULL)
|
|
printf("?");
|
|
else
|
|
printf("%s", buf);
|
|
}
|
|
break;
|
|
case PF_ADDR_NOROUTE:
|
|
printf("no-route");
|
|
return;
|
|
case PF_ADDR_URPFFAILED:
|
|
printf("urpf-failed");
|
|
return;
|
|
default:
|
|
printf("?");
|
|
return;
|
|
}
|
|
|
|
/* mask if not _both_ address and mask are zero */
|
|
if (addr->type != PF_ADDR_RANGE &&
|
|
!(PF_AZERO(&addr->v.a.addr, AF_INET6) &&
|
|
PF_AZERO(&addr->v.a.mask, AF_INET6))) {
|
|
int bits = unmask(&addr->v.a.mask, af);
|
|
|
|
if (bits != (af == AF_INET ? 32 : 128))
|
|
printf("/%d", bits);
|
|
}
|
|
}
|
|
|
|
void
|
|
print_name(struct pf_addr *addr, sa_family_t af)
|
|
{
|
|
char host[NI_MAXHOST];
|
|
|
|
strlcpy(host, "?", sizeof(host));
|
|
switch (af) {
|
|
case AF_INET: {
|
|
struct sockaddr_in sin;
|
|
|
|
memset(&sin, 0, sizeof(sin));
|
|
sin.sin_len = sizeof(sin);
|
|
sin.sin_family = AF_INET;
|
|
sin.sin_addr = addr->v4;
|
|
getnameinfo((struct sockaddr *)&sin, sin.sin_len,
|
|
host, sizeof(host), NULL, 0, NI_NOFQDN);
|
|
break;
|
|
}
|
|
case AF_INET6: {
|
|
struct sockaddr_in6 sin6;
|
|
|
|
memset(&sin6, 0, sizeof(sin6));
|
|
sin6.sin6_len = sizeof(sin6);
|
|
sin6.sin6_family = AF_INET6;
|
|
sin6.sin6_addr = addr->v6;
|
|
getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
|
|
host, sizeof(host), NULL, 0, NI_NOFQDN);
|
|
break;
|
|
}
|
|
}
|
|
printf("%s", host);
|
|
}
|
|
|
|
void
|
|
print_host(struct pf_addr *addr, u_int16_t port, sa_family_t af, int opts)
|
|
{
|
|
if (opts & PF_OPT_USEDNS)
|
|
print_name(addr, af);
|
|
else {
|
|
struct pf_addr_wrap aw;
|
|
|
|
memset(&aw, 0, sizeof(aw));
|
|
aw.v.a.addr = *addr;
|
|
if (af == AF_INET)
|
|
aw.v.a.mask.addr32[0] = 0xffffffff;
|
|
else {
|
|
memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask));
|
|
af = AF_INET6;
|
|
}
|
|
print_addr(&aw, af, opts & PF_OPT_VERBOSE2);
|
|
}
|
|
|
|
if (port) {
|
|
if (af == AF_INET)
|
|
printf(":%u", ntohs(port));
|
|
else
|
|
printf("[%u]", ntohs(port));
|
|
}
|
|
}
|
|
|
|
void
|
|
print_seq(struct pfsync_state_peer *p)
|
|
{
|
|
if (p->seqdiff)
|
|
printf("[%u + %u](+%u)", ntohl(p->seqlo),
|
|
ntohl(p->seqhi) - ntohl(p->seqlo), ntohl(p->seqdiff));
|
|
else
|
|
printf("[%u + %u]", ntohl(p->seqlo),
|
|
ntohl(p->seqhi) - ntohl(p->seqlo));
|
|
}
|
|
|
|
void
|
|
print_state(struct pfsync_state *s, int opts)
|
|
{
|
|
struct pfsync_state_peer *src, *dst;
|
|
struct pfsync_state_key *key, *sk, *nk;
|
|
struct protoent *p;
|
|
int min, sec;
|
|
#ifndef __NO_STRICT_ALIGNMENT
|
|
struct pfsync_state_key aligned_key[2];
|
|
|
|
bcopy(&s->key, aligned_key, sizeof(aligned_key));
|
|
key = aligned_key;
|
|
#else
|
|
key = s->key;
|
|
#endif
|
|
|
|
if (s->direction == PF_OUT) {
|
|
src = &s->src;
|
|
dst = &s->dst;
|
|
sk = &key[PF_SK_STACK];
|
|
nk = &key[PF_SK_WIRE];
|
|
if (s->proto == IPPROTO_ICMP || s->proto == IPPROTO_ICMPV6)
|
|
sk->port[0] = nk->port[0];
|
|
} else {
|
|
src = &s->dst;
|
|
dst = &s->src;
|
|
sk = &key[PF_SK_WIRE];
|
|
nk = &key[PF_SK_STACK];
|
|
if (s->proto == IPPROTO_ICMP || s->proto == IPPROTO_ICMPV6)
|
|
sk->port[1] = nk->port[1];
|
|
}
|
|
printf("%s ", s->ifname);
|
|
if ((p = getprotobynumber(s->proto)) != NULL)
|
|
printf("%s ", p->p_name);
|
|
else
|
|
printf("%u ", s->proto);
|
|
|
|
print_host(&nk->addr[1], nk->port[1], s->af, opts);
|
|
if (PF_ANEQ(&nk->addr[1], &sk->addr[1], s->af) ||
|
|
nk->port[1] != sk->port[1]) {
|
|
printf(" (");
|
|
print_host(&sk->addr[1], sk->port[1], s->af, opts);
|
|
printf(")");
|
|
}
|
|
if (s->direction == PF_OUT)
|
|
printf(" -> ");
|
|
else
|
|
printf(" <- ");
|
|
print_host(&nk->addr[0], nk->port[0], s->af, opts);
|
|
if (PF_ANEQ(&nk->addr[0], &sk->addr[0], s->af) ||
|
|
nk->port[0] != sk->port[0]) {
|
|
printf(" (");
|
|
print_host(&sk->addr[0], sk->port[0], s->af, opts);
|
|
printf(")");
|
|
}
|
|
|
|
printf(" ");
|
|
if (s->proto == IPPROTO_TCP) {
|
|
if (src->state <= TCPS_TIME_WAIT &&
|
|
dst->state <= TCPS_TIME_WAIT)
|
|
printf(" %s:%s\n", tcpstates[src->state],
|
|
tcpstates[dst->state]);
|
|
else if (src->state == PF_TCPS_PROXY_SRC ||
|
|
dst->state == PF_TCPS_PROXY_SRC)
|
|
printf(" PROXY:SRC\n");
|
|
else if (src->state == PF_TCPS_PROXY_DST ||
|
|
dst->state == PF_TCPS_PROXY_DST)
|
|
printf(" PROXY:DST\n");
|
|
else
|
|
printf(" <BAD STATE LEVELS %u:%u>\n",
|
|
src->state, dst->state);
|
|
if (opts & PF_OPT_VERBOSE) {
|
|
printf(" ");
|
|
print_seq(src);
|
|
if (src->wscale && dst->wscale)
|
|
printf(" wscale %u",
|
|
src->wscale & PF_WSCALE_MASK);
|
|
printf(" ");
|
|
print_seq(dst);
|
|
if (src->wscale && dst->wscale)
|
|
printf(" wscale %u",
|
|
dst->wscale & PF_WSCALE_MASK);
|
|
printf("\n");
|
|
}
|
|
} else if (s->proto == IPPROTO_UDP && src->state < PFUDPS_NSTATES &&
|
|
dst->state < PFUDPS_NSTATES) {
|
|
const char *states[] = PFUDPS_NAMES;
|
|
|
|
printf(" %s:%s\n", states[src->state], states[dst->state]);
|
|
#ifndef INET6
|
|
} else if (s->proto != IPPROTO_ICMP && src->state < PFOTHERS_NSTATES &&
|
|
dst->state < PFOTHERS_NSTATES) {
|
|
#else
|
|
} else if (s->proto != IPPROTO_ICMP && s->proto != IPPROTO_ICMPV6 &&
|
|
src->state < PFOTHERS_NSTATES && dst->state < PFOTHERS_NSTATES) {
|
|
#endif
|
|
/* XXX ICMP doesn't really have state levels */
|
|
const char *states[] = PFOTHERS_NAMES;
|
|
|
|
printf(" %s:%s\n", states[src->state], states[dst->state]);
|
|
} else {
|
|
printf(" %u:%u\n", src->state, dst->state);
|
|
}
|
|
|
|
if (opts & PF_OPT_VERBOSE) {
|
|
u_int64_t packets[2];
|
|
u_int64_t bytes[2];
|
|
u_int32_t creation = ntohl(s->creation);
|
|
u_int32_t expire = ntohl(s->expire);
|
|
|
|
sec = creation % 60;
|
|
creation /= 60;
|
|
min = creation % 60;
|
|
creation /= 60;
|
|
printf(" age %.2u:%.2u:%.2u", creation, min, sec);
|
|
sec = expire % 60;
|
|
expire /= 60;
|
|
min = expire % 60;
|
|
expire /= 60;
|
|
printf(", expires in %.2u:%.2u:%.2u", expire, min, sec);
|
|
|
|
bcopy(s->packets[0], &packets[0], sizeof(u_int64_t));
|
|
bcopy(s->packets[1], &packets[1], sizeof(u_int64_t));
|
|
bcopy(s->bytes[0], &bytes[0], sizeof(u_int64_t));
|
|
bcopy(s->bytes[1], &bytes[1], sizeof(u_int64_t));
|
|
printf(", %ju:%ju pkts, %ju:%ju bytes",
|
|
(uintmax_t )be64toh(packets[0]),
|
|
(uintmax_t )be64toh(packets[1]),
|
|
(uintmax_t )be64toh(bytes[0]),
|
|
(uintmax_t )be64toh(bytes[1]));
|
|
if (ntohl(s->anchor) != -1)
|
|
printf(", anchor %u", ntohl(s->anchor));
|
|
if (ntohl(s->rule) != -1)
|
|
printf(", rule %u", ntohl(s->rule));
|
|
if (s->state_flags & PFSTATE_SLOPPY)
|
|
printf(", sloppy");
|
|
if (s->sync_flags & PFSYNC_FLAG_SRCNODE)
|
|
printf(", source-track");
|
|
if (s->sync_flags & PFSYNC_FLAG_NATSRCNODE)
|
|
printf(", sticky-address");
|
|
printf("\n");
|
|
}
|
|
if (opts & PF_OPT_VERBOSE2) {
|
|
u_int64_t id;
|
|
|
|
bcopy(&s->id, &id, sizeof(u_int64_t));
|
|
printf(" id: %016jx creatorid: %08x",
|
|
(uintmax_t )be64toh(id), ntohl(s->creatorid));
|
|
printf("\n");
|
|
}
|
|
}
|
|
|
|
int
|
|
unmask(struct pf_addr *m, sa_family_t af)
|
|
{
|
|
int i = 31, j = 0, b = 0;
|
|
u_int32_t tmp;
|
|
|
|
while (j < 4 && m->addr32[j] == 0xffffffff) {
|
|
b += 32;
|
|
j++;
|
|
}
|
|
if (j < 4) {
|
|
tmp = ntohl(m->addr32[j]);
|
|
for (i = 31; tmp & (1 << i); --i)
|
|
b++;
|
|
}
|
|
return (b);
|
|
}
|