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Current Path: /usr/src/contrib/libpcap

📁 ..
📄 CHANGES(41.04 KB)
📄 CMakeLists.txt(84.97 KB)
📄 CONTRIBUTING.md(1.41 KB)
📄 CREDITS(11.47 KB)
📁 ChmodBPF
📄 INSTALL.md(15.44 KB)
📄 LICENSE(868 B)
📄 Makefile-devel-adds(614 B)
📄 Makefile.in(23.68 KB)
📄 README.md(3.71 KB)
📄 TODO(1.51 KB)
📄 VERSION(6 B)
📁 Win32
📄 aclocal.m4(30.92 KB)
📄 arcnet.h(2.39 KB)
📄 atmuni31.h(3.87 KB)
📄 bpf_dump.c(1.9 KB)
📄 bpf_filter.c(12.22 KB)
📄 bpf_image.c(7.38 KB)
📄 chmod_bpf(757 B)
📁 cmake
📄 cmake_uninstall.cmake.in(1.01 KB)
📄 cmakeconfig.h.in(11.15 KB)
📄 config.guess(43.17 KB)
📄 config.h.in(10.25 KB)
📄 config.sub(34.93 KB)
📄 configure(331.21 KB)
📄 configure.ac(64.36 KB)
📄 diag-control.h(8.3 KB)
📄 dlpisubs.c(9.41 KB)
📄 dlpisubs.h(702 B)
📁 doc
📄 etherent.c(3.43 KB)
📄 ethertype.h(3.47 KB)
📄 extract.h(9.23 KB)
📄 fad-getad.c(8.62 KB)
📄 fad-gifc.c(12.84 KB)
📄 fad-glifc.c(9.37 KB)
📄 fmtutils.c(6.35 KB)
📄 fmtutils.h(2.19 KB)
📄 ftmacros.h(4.22 KB)
📄 gencode.c(257 KB)
📄 gencode.h(11.44 KB)
📄 grammar.y(24.66 KB)
📄 ieee80211.h(5.25 KB)
📄 install-sh(5.45 KB)
📁 lbl
📄 libpcap.pc.in(484 B)
📄 llc.h(2.56 KB)
📁 missing
📄 mkdep(2.43 KB)
📁 msdos
📄 nametoaddr.c(18.83 KB)
📄 nametoaddr.h(2.12 KB)
📄 nlpid.h(1.66 KB)
📄 nomkdep(135 B)
📄 optimize.c(62.27 KB)
📄 optimize.h(1.29 KB)
📄 org.tcpdump.chmod_bpf.plist(441 B)
📁 pcap
📄 pcap-bpf.c(84.02 KB)
📄 pcap-bpf.h(2.24 KB)
📄 pcap-bt-linux.c(11.42 KB)
📄 pcap-bt-linux.h(1.76 KB)
📄 pcap-bt-monitor-linux.c(7.84 KB)
📄 pcap-bt-monitor-linux.h(1.64 KB)
📄 pcap-common.c(47.14 KB)
📄 pcap-common.h(2.29 KB)
📄 pcap-config.1(2.27 KB)
📄 pcap-config.in(1.8 KB)
📄 pcap-dag.c(37.15 KB)
📄 pcap-dag.h(457 B)
📄 pcap-dbus.c(10.03 KB)
📄 pcap-dbus.h(112 B)
📄 pcap-dll.rc(1.03 KB)
📄 pcap-dlpi.c(47.56 KB)
📄 pcap-dos.c(35.9 KB)
📄 pcap-dos.h(6.7 KB)
📄 pcap-enet.c(4.74 KB)
📄 pcap-filter.manmisc.in(33.54 KB)
📄 pcap-int.h(16.94 KB)
📄 pcap-libdlpi.c(12.11 KB)
📄 pcap-linktype.manmisc.in(2.33 KB)
📄 pcap-linux.c(207.89 KB)
📄 pcap-namedb.h(1.98 KB)
📄 pcap-netfilter-linux.c(20.48 KB)
📄 pcap-netfilter-linux.h(1.67 KB)
📄 pcap-netmap.c(7.82 KB)
📄 pcap-netmap.h(126 B)
📄 pcap-new.c(12.79 KB)
📄 pcap-nit.c(10.2 KB)
📄 pcap-npf.c(51.61 KB)
📄 pcap-null.c(1.9 KB)
📄 pcap-pf.c(18.48 KB)
📄 pcap-rdmasniff.c(10.98 KB)
📄 pcap-rdmasniff.h(140 B)
📄 pcap-rpcap-int.h(3.43 KB)
📄 pcap-rpcap.c(96.91 KB)
📄 pcap-rpcap.h(2.19 KB)
📄 pcap-savefile.manfile.in(5.11 KB)
📄 pcap-septel.c(8.69 KB)
📄 pcap-septel.h(512 B)
📄 pcap-sita.c(36.34 KB)
📄 pcap-sita.h(224 B)
📄 pcap-sita.html(37.43 KB)
📄 pcap-snf.c(14.75 KB)
📄 pcap-snf.h(110 B)
📄 pcap-snit.c(12.67 KB)
📄 pcap-snoop.c(13.26 KB)
📄 pcap-tc.c(34.21 KB)
📄 pcap-tc.h(1.9 KB)
📄 pcap-tstamp.manmisc.in(7.7 KB)
📄 pcap-types.h(1.93 KB)
📄 pcap-usb-linux.c(35.89 KB)
📄 pcap-usb-linux.h(1.75 KB)
📄 pcap.3pcap.in(29.62 KB)
📄 pcap.c(103.69 KB)
📄 pcap.h(2.17 KB)
📄 pcap_activate.3pcap(3.8 KB)
📄 pcap_breakloop.3pcap(3.98 KB)
📄 pcap_can_set_rfmon.3pcap(2.63 KB)
📄 pcap_close.3pcap(1.47 KB)
📄 pcap_compile.3pcap.in(3.02 KB)
📄 pcap_create.3pcap(2.19 KB)
📄 pcap_datalink.3pcap.in(2.39 KB)
📄 pcap_datalink_name_to_val.3pcap(1.82 KB)
📄 pcap_datalink_val_to_name.3pcap(2.47 KB)
📄 pcap_dump.3pcap(1.73 KB)
📄 pcap_dump_close.3pcap(1.49 KB)
📄 pcap_dump_file.3pcap(1.54 KB)
📄 pcap_dump_flush.3pcap(1.69 KB)
📄 pcap_dump_ftell.3pcap(2.11 KB)
📄 pcap_dump_open.3pcap.in(3.31 KB)
📄 pcap_file.3pcap(2.06 KB)
📄 pcap_fileno.3pcap(2 KB)
📄 pcap_findalldevs.3pcap(6.25 KB)
📄 pcap_freecode.3pcap(1.67 KB)
📄 pcap_get_required_select_timeout.3pcap(3.04 KB)
📄 pcap_get_selectable_fd.3pcap(4.66 KB)
📄 pcap_get_tstamp_precision.3pcap.in(1.83 KB)
📄 pcap_geterr.3pcap(1.84 KB)
📄 pcap_inject.3pcap(3.34 KB)
📄 pcap_is_swapped.3pcap(1.91 KB)
📄 pcap_lib_version.3pcap(1.6 KB)
📄 pcap_list_datalinks.3pcap.in(2.54 KB)
📄 pcap_list_tstamp_types.3pcap.in(2.98 KB)
📄 pcap_lookupdev.3pcap(2.47 KB)
📄 pcap_lookupnet.3pcap(1.95 KB)
📄 pcap_loop.3pcap(6.58 KB)
📄 pcap_major_version.3pcap(1.96 KB)
📄 pcap_next_ex.3pcap(4.86 KB)
📄 pcap_offline_filter.3pcap(1.95 KB)
📄 pcap_open_dead.3pcap.in(2.65 KB)
📄 pcap_open_live.3pcap(2.65 KB)
📄 pcap_open_offline.3pcap.in(3.8 KB)
📄 pcap_set_buffer_size.3pcap(1.79 KB)
📄 pcap_set_datalink.3pcap(1.84 KB)
📄 pcap_set_immediate_mode.3pcap.in(3.27 KB)
📄 pcap_set_promisc.3pcap(1.82 KB)
📄 pcap_set_protocol_linux.3pcap(2.81 KB)
📄 pcap_set_rfmon.3pcap(1.82 KB)
📄 pcap_set_snaplen.3pcap(1.74 KB)
📄 pcap_set_timeout.3pcap(2.15 KB)
📄 pcap_set_tstamp_precision.3pcap.in(2.38 KB)
📄 pcap_set_tstamp_type.3pcap.in(2.73 KB)
📄 pcap_setdirection.3pcap(2.36 KB)
📄 pcap_setfilter.3pcap(1.79 KB)
📄 pcap_setnonblock.3pcap(2.82 KB)
📄 pcap_snapshot.3pcap(1.91 KB)
📄 pcap_stats.3pcap(3.35 KB)
📄 pcap_statustostr.3pcap(1.55 KB)
📄 pcap_strerror.3pcap(1.54 KB)
📄 pcap_tstamp_type_name_to_val.3pcap(1.87 KB)
📄 pcap_tstamp_type_val_to_name.3pcap(1.99 KB)
📄 portability.h(5.46 KB)
📄 ppp.h(2.62 KB)
📄 rpcap-protocol.c(6.67 KB)
📄 rpcap-protocol.h(18.61 KB)
📁 rpcapd
📄 savefile.c(13.72 KB)
📄 scanner.l(14.36 KB)
📄 sf-pcap.c(30.33 KB)
📄 sf-pcap.h(1.69 KB)
📄 sf-pcapng.c(38.9 KB)
📄 sf-pcapng.h(1.41 KB)
📄 sockutils.c(52.26 KB)
📄 sockutils.h(5.22 KB)
📄 sunatmpos.h(2.09 KB)
📁 testprogs
📁 tests
📄 varattrs.h(2.38 KB)

Editing: pcap-enet.c

/*
 * Stanford Enetfilter subroutines for tcpdump
 *
 * Based on the MERIT NNstat etherifrt.c and the Ultrix pcap-pf.c
 * subroutines.
 *
 * Rayan Zachariassen, CA*Net
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <sys/types.h>
#include <sys/time.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#include <sys/socket.h>

#include <net/if.h>
#include <pcap/bpf.h>
#include <net/enet.h>

#include <netinet/in.h>
#include <netinet/if_ether.h>

#include <stdio.h>
#include <errno.h>

#include "interface.h"

struct packet_header {
#ifdef	IBMRTPC
	struct LengthWords	length;
	struct tap_header	tap;
#endif	/* IBMRTPC */
	u_char			packet[8]
};

extern int errno;

#define BUFSPACE (4*1024)

/* Forwards */
static void efReadError(int, char *);

void
readloop(int cnt, int if_fd, struct bpf_program *fp, printfunc printit)
{
#ifdef	IBMRTPC
	register struct packet_header *ph;
	register u_char *bp;
	register int inc;
#else	/* !IBMRTPC */
	static struct timeval tv = { 0 };
#endif	/* IBMRTPC */
	register int cc, caplen;
	register struct bpf_insn *fcode = fp->bf_insns;
	union {
		struct packet_header hdr;
		u_char	p[BUFSPACE];
		u_short	s;
	} buf;

while (1) {
		if ((cc = read(if_fd, (char *)buf.p, sizeof(buf))) < 0)
			efReadError(if_fd, "reader");

#ifdef	IBMRTPC
		/*
		 * Loop through each packet.
		 */
		bp = buf.p;
		while (cc > 0) {
			ph = (struct packet_header *)bp;
			caplen = ph->tap.th_wirelen > snaplen ? snaplen : ph->tap
.th_wirelen ;
			if (bpf_filter(fcode, (char *)ph->packet,
						ph->tap.th_wirelen, caplen)) {
				if (cnt >= 0 && --cnt < 0)
					goto out;
				(*printit)((char *)ph->packet,
					(struct timeval *)ph->tap.th_timestamp,
					ph->tap.th_wirelen, caplen);
			}
			inc = ph->length.PacketOffset;
			cc -= inc;
			bp += inc;
		}
#else	/* !IBMRTPC */
		caplen = cc > snaplen ? snaplen : cc ;
		if (bpf_filter(fcode, buf.hdr.packet, cc, caplen)) {
			if (cnt >= 0 && --cnt < 0)
				goto out;
			(*printit)(buf.hdr.packet, &tv, cc, caplen);
		}
#endif	/* IBMRTPC */
	}
 out:
	wrapup(if_fd);
}

/* Call ONLY if read() has returned an error on packet filter */
static void
efReadError(int fid, char *msg)
{
	if (errno == EINVAL) {	/* read MAXINT bytes already! */
		if (lseek(fid, 0, 0) < 0) {
			perror("tcpdump: efReadError/lseek");
			exit(-1);
		}
		else
			return;
	}
	else {
		(void) fprintf(stderr, "tcpdump: ");
		perror(msg);
		exit(-1);
	}
}

void
wrapup(int fd)
{
#ifdef	IBMRTPC
	struct enstats es;

if (ioctl(fd, EIOSTATS, &es) == -1) {
		perror("tcpdump: enet ioctl EIOSTATS error");
		exit(-1);
	}

fprintf(stderr, "%d packets queued", es.enStat_Rcnt);
	if (es.enStat_Rdrops > 0)
		fprintf(stderr, ", %d dropped", es.enStat_Rdrops);
	if (es.enStat_Reads > 0)
		fprintf(stderr, ", %d tcpdump %s", es.enStat_Reads,
				es.enStat_Reads > 1 ? "reads" : "read");
	if (es.enStat_MaxRead > 1)
		fprintf(stderr, ", %d packets in largest read",
			es.enStat_MaxRead);
	putc('\n', stderr);
#endif	/* IBMRTPC */
	close(fd);
}

int
initdevice(char *device, int pflag, int *linktype)
{
	struct eniocb ctl;
	struct enfilter filter;
	u_int maxwaiting;
	int if_fd;

#ifdef	IBMRTPC
	GETENETDEVICE(0, O_RDONLY, &if_fd);
#else	/* !IBMRTPC */
	if_fd = open("/dev/enet", O_RDONLY, 0);
#endif	/* IBMRTPC */

if (if_fd == -1) {
		perror("tcpdump: enet open error");
		error(
"your system may not be properly configured; see \"man enet(4)\"");
		exit(-1);
	}

/*  Get operating parameters. */

if (ioctl(if_fd, EIOCGETP, (char *)&ctl) == -1) {
		perror("tcpdump: enet ioctl EIOCGETP error");
		exit(-1);
	}

/*  Set operating parameters. */

#ifdef	IBMRTPC
	ctl.en_rtout = 1 * ctl.en_hz;
	ctl.en_tr_etherhead = 1;
	ctl.en_tap_network = 1;
	ctl.en_multi_packet = 1;
	ctl.en_maxlen = BUFSPACE;
#else	/* !IBMRTPC */
	ctl.en_rtout = 64;	/* randomly picked value for HZ */
#endif	/* IBMRTPC */
	if (ioctl(if_fd, EIOCSETP, &ctl) == -1) {
		perror("tcpdump: enet ioctl EIOCSETP error");
		exit(-1);
	}

/*  Flush the receive queue, since we've changed
	    the operating parameters and we otherwise might
	    receive data without headers. */

if (ioctl(if_fd, EIOCFLUSH) == -1) {
		perror("tcpdump: enet ioctl EIOCFLUSH error");
		exit(-1);
	}

/*  Set the receive queue depth to its maximum. */

maxwaiting = ctl.en_maxwaiting;
	if (ioctl(if_fd, EIOCSETW, &maxwaiting) == -1) {
		perror("tcpdump: enet ioctl EIOCSETW error");
		exit(-1);
	}

#ifdef	IBMRTPC
	/*  Clear statistics. */

if (ioctl(if_fd, EIOCLRSTAT, 0) == -1) {
		perror("tcpdump: enet ioctl EIOCLRSTAT error");
		exit(-1);
	}
#endif	/* IBMRTPC */

/*  Set the filter (accept all packets). */

filter.enf_Priority = 3;
	filter.enf_FilterLen = 0;
	if (ioctl(if_fd, EIOCSETF, &filter) == -1) {
		perror("tcpdump: enet ioctl EIOCSETF error");
		exit(-1);
	}
	/*
	 * "enetfilter" supports only ethernets.
	 */
	*linktype = DLT_EN10MB;

return(if_fd);
}

003 File Manager

Editing: pcap-enet.c

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