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-rw-r--r--contrib/pf/pfctl/pf_print_state.c279
1 files changed, 279 insertions, 0 deletions
diff --git a/contrib/pf/pfctl/pf_print_state.c b/contrib/pf/pfctl/pf_print_state.c
new file mode 100644
index 0000000..58ce23a
--- /dev/null
+++ b/contrib/pf/pfctl/pf_print_state.c
@@ -0,0 +1,279 @@
+/* $OpenBSD: pf_print_state.c,v 1.33 2003/07/06 22:01:28 deraadt Exp $ */
+
+/*
+ * 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/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#define TCPSTATES
+#include <netinet/tcp_fsm.h>
+#include <net/pfvar.h>
+#include <arpa/inet.h>
+#include <netdb.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);
+ 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_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;
+ default:
+ printf("?");
+ return;
+ }
+ if (! PF_AZERO(&addr->v.a.mask, af)) {
+ 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_state_host *h, sa_family_t af, int opts)
+{
+ u_int16_t p = ntohs(h->port);
+
+ if (opts & PF_OPT_USEDNS)
+ print_name(&h->addr, af);
+ else {
+ struct pf_addr_wrap aw;
+
+ memset(&aw, 0, sizeof(aw));
+ aw.v.a.addr = h->addr;
+ if (af == AF_INET)
+ aw.v.a.mask.addr32[0] = 0xffffffff;
+ else
+ memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask));
+ print_addr(&aw, af, opts & PF_OPT_VERBOSE2);
+ }
+
+ if (p) {
+ if (af == AF_INET)
+ printf(":%u", p);
+ else
+ printf("[%u]", p);
+ }
+}
+
+void
+print_seq(struct pf_state_peer *p)
+{
+ if (p->seqdiff)
+ printf("[%u + %u](+%u)", p->seqlo, p->seqhi - p->seqlo,
+ p->seqdiff);
+ else
+ printf("[%u + %u]", p->seqlo, p->seqhi - p->seqlo);
+}
+
+void
+print_state(struct pf_state *s, int opts)
+{
+ struct pf_state_peer *src, *dst;
+ struct protoent *p;
+ int min, sec;
+
+ if (s->direction == PF_OUT) {
+ src = &s->src;
+ dst = &s->dst;
+ } else {
+ src = &s->dst;
+ dst = &s->src;
+ }
+ if ((p = getprotobynumber(s->proto)) != NULL)
+ printf("%s ", p->p_name);
+ else
+ printf("%u ", s->proto);
+ if (PF_ANEQ(&s->lan.addr, &s->gwy.addr, s->af) ||
+ (s->lan.port != s->gwy.port)) {
+ print_host(&s->lan, s->af, opts);
+ if (s->direction == PF_OUT)
+ printf(" -> ");
+ else
+ printf(" <- ");
+ }
+ print_host(&s->gwy, s->af, opts);
+ if (s->direction == PF_OUT)
+ printf(" -> ");
+ else
+ printf(" <- ");
+ print_host(&s->ext, s->af, opts);
+
+ 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]);
+ } else if (s->proto != IPPROTO_ICMP && src->state < PFOTHERS_NSTATES &&
+ dst->state < PFOTHERS_NSTATES) {
+ /* 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) {
+ sec = s->creation % 60;
+ s->creation /= 60;
+ min = s->creation % 60;
+ s->creation /= 60;
+ printf(" age %.2u:%.2u:%.2u", s->creation, min, sec);
+ sec = s->expire % 60;
+ s->expire /= 60;
+ min = s->expire % 60;
+ s->expire /= 60;
+ printf(", expires in %.2u:%.2u:%.2u", s->expire, min, sec);
+ printf(", %u:%u pkts, %u:%u bytes",
+ s->packets[0], s->packets[1], s->bytes[0], s->bytes[1]);
+ if (s->anchor.nr != -1)
+ printf(", anchor %u", s->anchor.nr);
+ if (s->rule.nr != -1)
+ printf(", rule %u", s->rule.nr);
+ 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);
+}
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