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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/tcpdump/print-pflog.c	Lines:	0	78	0.0 %
Date:	2017-11-13	Branches:	0	49	0.0 %


/*	$OpenBSD: print-pflog.c,v 1.31 2017/05/24 16:20:26 bluhm Exp $	*/

/*
 * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
 * the University nor the names of its contributors may be used to endorse
 * or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#include <sys/param.h>	/* MAXCOMLEN */
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#include <sys/queue.h>
#include <sys/mbuf.h>

#ifndef NO_PID
#define NO_PID	(99999+1)
#endif

struct rtentry;

#include <netinet/in.h>
#include <netinet/ip.h>
#include <net/if.h>
#include <net/pfvar.h>
#include <net/if_pflog.h>

#include <arpa/inet.h>

#include <ctype.h>
#include <netdb.h>
#include <pcap.h>
#include <signal.h>
#include <stdio.h>

#include "interface.h"
#include "addrtoname.h"

char *pf_reasons[PFRES_MAX+2] = PFRES_NAMES;

void
pflog_if_print(u_char *user, const struct pcap_pkthdr *h,
     const u_char *p)
{
	u_int length = h->len;
	u_int hdrlen;
	u_int caplen = h->caplen;
	const struct ip *ip;
#ifdef INET6
	const struct ip6_hdr *ip6;
#endif
	const struct pfloghdr *hdr;
	u_int8_t af;

	ts_print(&h->ts);

	/* check length */
	if (caplen < sizeof(u_int8_t)) {
		printf("[|pflog]");
		goto out;
	}

#define MIN_PFLOG_HDRLEN	45
	hdr = (struct pfloghdr *)p;
	if (hdr->length < MIN_PFLOG_HDRLEN) {
		printf("[pflog: invalid header length!]");
		goto out;
	}
	hdrlen = (hdr->length + 3) & 0xfc;

	if (caplen < hdrlen) {
		printf("[|pflog]");
		goto out;
	}

	/*
	 * Some printers want to get back at the link level addresses,
	 * and/or check that they're not walking off the end of the packet.
	 * Rather than pass them all the way down, we set these globals.
	 */
	packetp = p;
	snapend = p + caplen;

	hdr = (struct pfloghdr *)p;
	if (eflag) {
		printf("rule ");
		if (ntohl(hdr->rulenr) == (u_int32_t) -1)
			printf("def");
		else {
			printf("%u", ntohl(hdr->rulenr));
			if (hdr->ruleset[0]) {
				printf(".%s", hdr->ruleset);
				if (ntohl(hdr->subrulenr) == (u_int32_t) -1)
					printf(".def");
				else
					printf(".%u", ntohl(hdr->subrulenr));
			}
		}
		if (hdr->reason < PFRES_MAX)
			printf("/(%s) ", pf_reasons[hdr->reason]);
		else
			printf("/(unkn %u) ", (unsigned)hdr->reason);
		if (vflag)
			printf("[uid %u, pid %u] ", (unsigned)hdr->rule_uid,
			    (unsigned)hdr->rule_pid);

		switch (hdr->action) {
		case PF_MATCH:
			printf("match");
			break;
		case PF_SCRUB:
			printf("scrub");
			break;
		case PF_PASS:
			printf("pass");
			break;
		case PF_DROP:
			printf("block");
			break;
		case PF_NAT:
		case PF_NONAT:
			printf("nat");
			break;
		case PF_BINAT:
		case PF_NOBINAT:
			printf("binat");
			break;
		case PF_RDR:
		case PF_NORDR:
			printf("rdr");
			break;
		}
		printf(" %s on %s: ",
		    hdr->dir == PF_OUT ? "out" : "in",
		    hdr->ifname);
		if (vflag && hdr->pid != NO_PID)
			printf("[uid %u, pid %u] ", (unsigned)hdr->uid,
			    (unsigned)hdr->pid);
		if (vflag && hdr->rewritten) {
			char buf[48];

			if (inet_ntop(hdr->af, &hdr->saddr.v4, buf,
			    sizeof(buf)) == NULL)
				printf("[orig src ?, ");
			else
				printf("[orig src %s:%u, ", buf,
				    ntohs(hdr->sport));
			if (inet_ntop(hdr->af, &hdr->daddr.v4, buf,
			    sizeof(buf)) == NULL)
				printf("dst ?] ");
			else
				printf("dst %s:%u] ", buf,
				    ntohs(hdr->dport));
		}
	}
	af = hdr->naf;
	length -= hdrlen;
	if (af == AF_INET) {
		ip = (struct ip *)(p + hdrlen);
		ip_print((const u_char *)ip, length);
		if (xflag)
			default_print((const u_char *)ip,
			    caplen - hdrlen);
	} else {
#ifdef INET6
		ip6 = (struct ip6_hdr *)(p + hdrlen);
		ip6_print((const u_char *)ip6, length);
		if (xflag)
			default_print((const u_char *)ip6,
			    caplen - hdrlen);
#endif
	}

out:
	putchar('\n');
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: print-pflog.c,v 1.31 2017/05/24 16:20:26 bluhm Exp $ */
2
3			/*
4			* Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996
5			* The Regents of the University of California. All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that: (1) source code distributions
9			* retain the above copyright notice and this paragraph in its entirety, (2)
10			* distributions including binary code include the above copyright notice and
11			* this paragraph in its entirety in the documentation or other materials
12			* provided with the distribution, and (3) all advertising materials mentioning
13			* features or use of this software display the following acknowledgement:
14			* ``This product includes software developed by the University of California,
15			* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
16			* the University nor the names of its contributors may be used to endorse
17			* or promote products derived from this software without specific prior
18			* written permission.
19			* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20			* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21			* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22			*/
23
24			#include <sys/param.h> /* MAXCOMLEN */
25			#include <sys/time.h>
26			#include <sys/socket.h>
27			#include <sys/file.h>
28			#include <sys/ioctl.h>
29			#include <sys/queue.h>
30			#include <sys/mbuf.h>
31
32			#ifndef NO_PID
33			#define NO_PID (99999+1)
34			#endif
35
36			struct rtentry;
37
38			#include <netinet/in.h>
39			#include <netinet/ip.h>
40			#include <net/if.h>
41			#include <net/pfvar.h>
42			#include <net/if_pflog.h>
43
44			#include <arpa/inet.h>
45
46			#include <ctype.h>
47			#include <netdb.h>
48			#include <pcap.h>
49			#include <signal.h>
50			#include <stdio.h>
51
52			#include "interface.h"
53			#include "addrtoname.h"
54
55			char *pf_reasons[PFRES_MAX+2] = PFRES_NAMES;
56
57			void
58			pflog_if_print(u_char user, const struct pcap_pkthdr h,
59			const u_char *p)
60			{
61			u_int length = h->len;
62			u_int hdrlen;
63			u_int caplen = h->caplen;
64			const struct ip *ip;
65			#ifdef INET6
66			const struct ip6_hdr *ip6;
67			#endif
68			const struct pfloghdr *hdr;
69			u_int8_t af;
70
71			ts_print(&h->ts);
72
73			/* check length */
74			if (caplen < sizeof(u_int8_t)) {
75			printf("[\|pflog]");
76			goto out;
77			}
78
79			#define MIN_PFLOG_HDRLEN 45
80			hdr = (struct pfloghdr *)p;
81			if (hdr->length < MIN_PFLOG_HDRLEN) {
82			printf("[pflog: invalid header length!]");
83			goto out;
84			}
85			hdrlen = (hdr->length + 3) & 0xfc;
86
87			if (caplen < hdrlen) {
88			printf("[\|pflog]");
89			goto out;
90			}
91
92			/*
93			* Some printers want to get back at the link level addresses,
94			* and/or check that they're not walking off the end of the packet.
95			* Rather than pass them all the way down, we set these globals.
96			*/
97			packetp = p;
98			snapend = p + caplen;
99
100			hdr = (struct pfloghdr *)p;
101			if (eflag) {
102			printf("rule ");
103			if (ntohl(hdr->rulenr) == (u_int32_t) -1)
104			printf("def");
105			else {
106			printf("%u", ntohl(hdr->rulenr));
107			if (hdr->ruleset[0]) {
108			printf(".%s", hdr->ruleset);
109			if (ntohl(hdr->subrulenr) == (u_int32_t) -1)
110			printf(".def");
111			else
112			printf(".%u", ntohl(hdr->subrulenr));
113			}
114			}
115			if (hdr->reason < PFRES_MAX)
116			printf("/(%s) ", pf_reasons[hdr->reason]);
117			else
118			printf("/(unkn %u) ", (unsigned)hdr->reason);
119			if (vflag)
120			printf("[uid %u, pid %u] ", (unsigned)hdr->rule_uid,
121			(unsigned)hdr->rule_pid);
122
123			switch (hdr->action) {
124			case PF_MATCH:
125			printf("match");
126			break;
127			case PF_SCRUB:
128			printf("scrub");
129			break;
130			case PF_PASS:
131			printf("pass");
132			break;
133			case PF_DROP:
134			printf("block");
135			break;
136			case PF_NAT:
137			case PF_NONAT:
138			printf("nat");
139			break;
140			case PF_BINAT:
141			case PF_NOBINAT:
142			printf("binat");
143			break;
144			case PF_RDR:
145			case PF_NORDR:
146			printf("rdr");
147			break;
148			}
149			printf(" %s on %s: ",
150			hdr->dir == PF_OUT ? "out" : "in",
151			hdr->ifname);
152			if (vflag && hdr->pid != NO_PID)
153			printf("[uid %u, pid %u] ", (unsigned)hdr->uid,
154			(unsigned)hdr->pid);
155			if (vflag && hdr->rewritten) {
156			char buf[48];
157
158			if (inet_ntop(hdr->af, &hdr->saddr.v4, buf,
159			sizeof(buf)) == NULL)
160			printf("[orig src ?, ");
161			else
162			printf("[orig src %s:%u, ", buf,
163			ntohs(hdr->sport));
164			if (inet_ntop(hdr->af, &hdr->daddr.v4, buf,
165			sizeof(buf)) == NULL)
166			printf("dst ?] ");
167			else
168			printf("dst %s:%u] ", buf,
169			ntohs(hdr->dport));
170			}
171			}
172			af = hdr->naf;
173			length -= hdrlen;
174			if (af == AF_INET) {
175			ip = (struct ip *)(p + hdrlen);
176			ip_print((const u_char *)ip, length);
177			if (xflag)
178			default_print((const u_char *)ip,
179			caplen - hdrlen);
180			} else {
181			#ifdef INET6
182			ip6 = (struct ip6_hdr *)(p + hdrlen);
183			ip6_print((const u_char *)ip6, length);
184			if (xflag)
185			default_print((const u_char *)ip6,
186			caplen - hdrlen);
187			#endif
188			}
189
190			out:
191			putchar('\n');
192			}