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Current Path: /usr/src/contrib/ipfilter/lib

📁 ..
📄 Makefile(18.78 KB)
📄 addicmp.c(446 B)
📄 addipopt.c(1.14 KB)
📄 alist_free.c(334 B)
📄 alist_new.c(1.59 KB)
📄 allocmbt.c(383 B)
📄 assigndefined.c(452 B)
📄 bcopywrap.c(274 B)
📄 binprint.c(411 B)
📄 buildopts.c(823 B)
📄 checkrev.c(803 B)
📄 connecttcp.c(911 B)
📄 count4bits.c(621 B)
📄 count6bits.c(376 B)
📄 debug.c(556 B)
📄 dupmbt.c(482 B)
📄 facpri.c(2.62 KB)
📄 facpri.h(629 B)
📄 familyname.c(184 B)
📄 fill6bits.c(744 B)
📄 findword.c(413 B)
📄 flags.c(414 B)
📄 freembt.c(233 B)
📄 ftov.c(204 B)
📄 gethost.c(1.42 KB)
📄 geticmptype.c(452 B)
📄 getifname.c(957 B)
📄 getnattype.c(1.15 KB)
📄 getport.c(1.75 KB)
📄 getportproto.c(621 B)
📄 getproto.c(462 B)
📄 getsumd.c(344 B)
📄 hostname.c(1.2 KB)
📄 icmpcode.c(493 B)
📄 icmptypename.c(494 B)
📄 icmptypes.c(3.34 KB)
📄 inet_addr.c(6.1 KB)
📄 initparse.c(300 B)
📄 interror.c(26.29 KB)
📄 ionames.c(1.57 KB)
📄 ipf_dotuning.c(1.61 KB)
📄 ipf_perror.c(698 B)
📄 ipft_hx.c(3.13 KB)
📄 ipft_pc.c(4.41 KB)
📄 ipft_tx.c(10.09 KB)
📄 ipoptsec.c(1.15 KB)
📄 kmem.c(1.85 KB)
📄 kmem.h(504 B)
📄 kmemcpywrap.c(314 B)
📄 kvatoname.c(672 B)
📄 load_dstlist.c(1.65 KB)
📄 load_dstlistnode.c(1.47 KB)
📄 load_file.c(1.56 KB)
📄 load_hash.c(2.29 KB)
📄 load_hashnode.c(1.35 KB)
📄 load_http.c(4.02 KB)
📄 load_pool.c(1.59 KB)
📄 load_poolnode.c(1.4 KB)
📄 load_url.c(542 B)
📄 mb_hexdump.c(541 B)
📄 msgdsize.c(333 B)
📄 mutex_emul.c(2.66 KB)
📄 nametokva.c(645 B)
📄 nat_setgroupmap.c(756 B)
📄 ntomask.c(635 B)
📄 optname.c(1.13 KB)
📄 optprint.c(1.73 KB)
📄 optprintv6.c(894 B)
📄 optvalue.c(520 B)
📄 parsefields.c(984 B)
📄 parseipfexpr.c(6.19 KB)
📄 parsewhoisline.c(2.72 KB)
📄 poolio.c(704 B)
📄 portname.c(902 B)
📄 prependmbt.c(307 B)
📄 print_toif.c(882 B)
📄 printactiveaddr.c(643 B)
📄 printactivenat.c(4.18 KB)
📄 printaddr.c(1.16 KB)
📄 printaps.c(3.53 KB)
📄 printbuf.c(414 B)
📄 printdstl_live.c(1.72 KB)
📄 printdstlist.c(1.04 KB)
📄 printdstlistdata.c(974 B)
📄 printdstlistnode.c(1.73 KB)
📄 printdstlistpolicy.c(454 B)
📄 printfieldhdr.c(972 B)
📄 printfr.c(10.73 KB)
📄 printfraginfo.c(801 B)
📄 printhash.c(1.04 KB)
📄 printhash_live.c(1.4 KB)
📄 printhashdata.c(1.93 KB)
📄 printhashnode.c(2.32 KB)
📄 printhost.c(553 B)
📄 printhostmap.c(626 B)
📄 printhostmask.c(612 B)
📄 printifname.c(339 B)
📄 printip.c(690 B)
📄 printipfexpr.c(3.58 KB)
📄 printiphdr.c(462 B)
📄 printlog.c(650 B)
📄 printlookup.c(700 B)
📄 printmask.c(450 B)
📄 printnat.c(8.69 KB)
📄 printnataddr.c(992 B)
📄 printnatfield.c(3.2 KB)
📄 printnatside.c(2.51 KB)
📄 printpacket.c(2.06 KB)
📄 printpacket6.c(1.29 KB)
📄 printpool.c(1.2 KB)
📄 printpool_live.c(1.39 KB)
📄 printpooldata.c(1.08 KB)
📄 printpoolfield.c(3.42 KB)
📄 printpoolnode.c(1.66 KB)
📄 printportcmp.c(632 B)
📄 printproto.c(750 B)
📄 printsbuf.c(542 B)
📄 printstate.c(5.74 KB)
📄 printstatefields.c(5.24 KB)
📄 printtcpflags.c(451 B)
📄 printtqtable.c(430 B)
📄 printtunable.c(649 B)
📄 printunit.c(652 B)
📄 remove_hash.c(1 KB)
📄 remove_hashnode.c(1.11 KB)
📄 remove_pool.c(947 B)
📄 remove_poolnode.c(1.08 KB)
📄 resetlexer.c(331 B)
📄 rwlock_emul.c(3.47 KB)
📄 save_execute.c(1.14 KB)
📄 save_file.c(1.88 KB)
📄 save_nothing.c(821 B)
📄 save_syslog.c(2.2 KB)
📄 save_v1trap.c(7.93 KB)
📄 save_v2trap.c(7.98 KB)
📄 tcp_flags.c(770 B)
📄 tcpflags.c(594 B)
📄 tcpoptnames.c(513 B)
📄 v6ionames.c(636 B)
📄 v6optvalue.c(577 B)
📄 var.c(2.92 KB)
📄 verbose.c(511 B)
📄 vtof.c(204 B)

Editing: ipft_pc.c

/*	$FreeBSD$	*/

/*
 * Copyright (C) 2012 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * $Id$
 */
#include "ipf.h"
#include "ipt.h"

#if !defined(lint)
static const char rcsid[] = "@(#)$Id$";
#endif

struct	llc	{
	int	lc_type;
	int	lc_sz;	/* LLC header length */
	int	lc_to;	/* LLC Type offset */
	int	lc_tl;	/* LLC Type length */
};

/*
 * While many of these maybe the same, some do have different header formats
 * which make this useful.
 */

static	struct	llc	llcs[] = {
	{ 0, 0, 0, 0 },				/* DLT_NULL */
	{ 1, 14, 12, 2 },			/* DLT_Ethernet */
	{ 10, 0, 0, 0 },			/* DLT_FDDI */
	{ 12, 0, 0, 0 },			/* DLT_RAW */
	{ -1, -1, -1, -1 }
};

typedef struct {
	u_int	id;
	u_short	major;
	u_short	minor;
	u_int	timezone;
	u_int	sigfigs;
	u_int	snaplen;
	u_int	type;
} fileheader_t;

typedef struct {
	u_32_t	seconds;
	u_32_t	microseconds;
	u_32_t	caplen;
	u_32_t	wirelen;
} packetheader_t;

static	int	ipcap_open __P((char *));
static	int	ipcap_close __P((void));
static	int	ipcap_readip __P((mb_t *, char **, int *));
static	int	ipcap_read_rec __P((packetheader_t *));
static	void	iswap_hdr __P((fileheader_t *));

static	int	pfd = -1, swapped = 0;
static	struct llc	*llcp = NULL;

struct	ipread	pcap = { ipcap_open, ipcap_close, ipcap_readip, 0 };

#define	SWAPLONG(y)	\
	((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff))
#define	SWAPSHORT(y)	\
	( (((y)&0xff)<<8) | (((y)&0xff00)>>8) )

static	void	iswap_hdr(p)
	fileheader_t	*p;
{
	p->major = SWAPSHORT(p->major);
	p->minor = SWAPSHORT(p->minor);
	p->timezone = SWAPLONG(p->timezone);
	p->sigfigs = SWAPLONG(p->sigfigs);
	p->snaplen = SWAPLONG(p->snaplen);
	p->type = SWAPLONG(p->type);
}

static	int	ipcap_open(fname)
	char	*fname;
{
	fileheader_t ph;
	int fd, i;

if (pfd != -1)
		return pfd;

if (!strcmp(fname, "-"))
		fd = 0;
	else if ((fd = open(fname, O_RDONLY)) == -1)
		return -1;

if (read(fd, (char *)&ph, sizeof(ph)) != sizeof(ph))
		return -2;

if (ph.id != 0xa1b2c3d4) {
		if (SWAPLONG(ph.id) != 0xa1b2c3d4) {
			(void) close(fd);
			return -2;
		}
		swapped = 1;
		iswap_hdr(&ph);
	}

for (i = 0; llcs[i].lc_type != -1; i++)
		if (llcs[i].lc_type == ph.type) {
			llcp = llcs + i;
			break;
		}

if (llcp == NULL) {
		(void) close(fd);
		return -2;
	}

pfd = fd;
	printf("opened pcap file %s:\n", fname);
	printf("\tid: %08x version: %d.%d type: %d snap %d\n",
		ph.id, ph.major, ph.minor, ph.type, ph.snaplen);

return fd;
}

static	int	ipcap_close()
{
	return close(pfd);
}

/*
 * read in the header (and validate) which should be the first record
 * in a pcap file.
 */
static	int	ipcap_read_rec(rec)
	packetheader_t *rec;
{
	int	n, p, i;
	char	*s;

s = (char *)rec;
	n = sizeof(*rec);

while (n > 0) {
		i = read(pfd, (char *)rec, sizeof(*rec));
		if (i <= 0)
			return -2;
		s += i;
		n -= i;
	}

if (swapped) {
		rec->caplen = SWAPLONG(rec->caplen);
		rec->wirelen = SWAPLONG(rec->wirelen);
		rec->seconds = SWAPLONG(rec->seconds);
		rec->microseconds = SWAPLONG(rec->microseconds);
	}
	p = rec->caplen;
	n = MIN(p, rec->wirelen);
	if (!n || n < 0)
		return -3;

if (p < 0 || p > 65536)
		return -4;
	return p;
}

#ifdef	notyet
/*
 * read an entire pcap packet record.  only the data part is copied into
 * the available buffer, with the number of bytes copied returned.
 */
static	int	ipcap_read(buf, cnt)
	char	*buf;
	int	cnt;
{
	packetheader_t rec;
	static	char	*bufp = NULL;
	int	i, n;

if ((i = ipcap_read_rec(&rec)) <= 0)
		return i;

if (!bufp)
		bufp = malloc(i);
	else
		bufp = realloc(bufp, i);

if (read(pfd, bufp, i) != i)
		return -2;

n = MIN(i, cnt);
	bcopy(bufp, buf, n);
	return n;
}
#endif

/*
 * return only an IP packet read into buf
 */
static	int	ipcap_readip(mb, ifn, dir)
	mb_t	*mb;
	char	**ifn;
	int	*dir;
{
	static	char	*bufp = NULL;
	packetheader_t	rec;
	struct	llc	*l;
	char	*s, ty[4];
	int	i, j, n;
	char	*buf;
	int	cnt;

#if 0
	ifn = ifn;	/* gcc -Wextra */
	dir = dir;	/* gcc -Wextra */
#endif
	buf = (char *)mb->mb_buf;
	cnt = sizeof(mb->mb_buf);
	l = llcp;

/* do { */
		if ((i = ipcap_read_rec(&rec)) <= 0)
			return i;

if (!bufp)
			bufp = malloc(i);
		else
			bufp = realloc(bufp, i);
		s = bufp;

for (j = i, n = 0; j > 0; ) {
			n = read(pfd, s, j);
			if (n <= 0)
				return -2;
			j -= n;
			s += n;
		}
		s = bufp;

i -= l->lc_sz;
		s += l->lc_to;
		bcopy(s, ty, l->lc_tl);
		s += l->lc_tl;
	/* } while (ty[0] != 0x8 && ty[1] != 0); */
	n = MIN(i, cnt);
	bcopy(s, buf, n);
	mb->mb_len = n;
	return n;
}

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Editing: ipft_pc.c

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