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-rw-r--r--contrib/libpcap/pcap-nit.c356
1 files changed, 0 insertions, 356 deletions
diff --git a/contrib/libpcap/pcap-nit.c b/contrib/libpcap/pcap-nit.c
deleted file mode 100644
index 94c4528..0000000
--- a/contrib/libpcap/pcap-nit.c
+++ /dev/null
@@ -1,356 +0,0 @@
-/*
- * Copyright (c) 1990, 1991, 1992, 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.
- */
-#ifndef lint
-static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/libpcap/pcap-nit.c,v 1.57.2.1 2005/05/03 18:54:37 guy Exp $ (LBL)";
-#endif
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/timeb.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-
-#include <net/if.h>
-#include <net/nit.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/if_ether.h>
-#include <netinet/ip_var.h>
-#include <netinet/udp.h>
-#include <netinet/udp_var.h>
-#include <netinet/tcp.h>
-#include <netinet/tcpip.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-
-#include "pcap-int.h"
-
-#ifdef HAVE_OS_PROTO_H
-#include "os-proto.h"
-#endif
-
-/*
- * The chunk size for NIT. This is the amount of buffering
- * done for read calls.
- */
-#define CHUNKSIZE (2*1024)
-
-/*
- * The total buffer space used by NIT.
- */
-#define BUFSPACE (4*CHUNKSIZE)
-
-/* Forwards */
-static int nit_setflags(int, int, int, char *);
-
-static int
-pcap_stats_nit(pcap_t *p, struct pcap_stat *ps)
-{
-
- /*
- * "ps_recv" counts packets handed to the filter, not packets
- * that passed the filter. As filtering is done in userland,
- * this does not include packets dropped because we ran out
- * of buffer space.
- *
- * "ps_drop" presumably counts packets dropped by the socket
- * because of flow control requirements or resource exhaustion;
- * it doesn't count packets dropped by the interface driver.
- * As filtering is done in userland, it counts packets regardless
- * of whether they would've passed the filter.
- *
- * These statistics don't include packets not yet read from the
- * kernel by libpcap or packets not yet read from libpcap by the
- * application.
- */
- *ps = p->md.stat;
- return (0);
-}
-
-static int
-pcap_read_nit(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
- register int cc, n;
- register struct bpf_insn *fcode = p->fcode.bf_insns;
- register u_char *bp, *cp, *ep;
- register struct nit_hdr *nh;
- register int caplen;
-
- cc = p->cc;
- if (cc == 0) {
- cc = read(p->fd, (char *)p->buffer, p->bufsize);
- if (cc < 0) {
- if (errno == EWOULDBLOCK)
- return (0);
- snprintf(p->errbuf, sizeof(p->errbuf), "pcap_read: %s",
- pcap_strerror(errno));
- return (-1);
- }
- bp = p->buffer;
- } else
- bp = p->bp;
-
- /*
- * Loop through each packet. The increment expression
- * rounds up to the next int boundary past the end of
- * the previous packet.
- */
- n = 0;
- ep = bp + cc;
- while (bp < ep) {
- /*
- * Has "pcap_breakloop()" been called?
- * If so, return immediately - if we haven't read any
- * packets, clear the flag and return -2 to indicate
- * that we were told to break out of the loop, otherwise
- * leave the flag set, so that the *next* call will break
- * out of the loop without having read any packets, and
- * return the number of packets we've processed so far.
- */
- if (p->break_loop) {
- if (n == 0) {
- p->break_loop = 0;
- return (-2);
- } else {
- p->cc = ep - bp;
- p->bp = bp;
- return (n);
- }
- }
-
- nh = (struct nit_hdr *)bp;
- cp = bp + sizeof(*nh);
-
- switch (nh->nh_state) {
-
- case NIT_CATCH:
- break;
-
- case NIT_NOMBUF:
- case NIT_NOCLUSTER:
- case NIT_NOSPACE:
- p->md.stat.ps_drop = nh->nh_dropped;
- continue;
-
- case NIT_SEQNO:
- continue;
-
- default:
- snprintf(p->errbuf, sizeof(p->errbuf),
- "bad nit state %d", nh->nh_state);
- return (-1);
- }
- ++p->md.stat.ps_recv;
- bp += ((sizeof(struct nit_hdr) + nh->nh_datalen +
- sizeof(int) - 1) & ~(sizeof(int) - 1));
-
- caplen = nh->nh_wirelen;
- if (caplen > p->snapshot)
- caplen = p->snapshot;
- if (bpf_filter(fcode, cp, nh->nh_wirelen, caplen)) {
- struct pcap_pkthdr h;
- h.ts = nh->nh_timestamp;
- h.len = nh->nh_wirelen;
- h.caplen = caplen;
- (*callback)(user, &h, cp);
- if (++n >= cnt && cnt >= 0) {
- p->cc = ep - bp;
- p->bp = bp;
- return (n);
- }
- }
- }
- p->cc = 0;
- return (n);
-}
-
-static int
-pcap_inject_nit(pcap_t *p, const void *buf, size_t size)
-{
- struct sockaddr sa;
- int ret;
-
- memset(&sa, 0, sizeof(sa));
- strncpy(sa.sa_data, device, sizeof(sa.sa_data));
- ret = sendto(p->fd, buf, size, 0, &sa, sizeof(sa));
- if (ret == -1) {
- snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s",
- pcap_strerror(errno));
- return (-1);
- }
- return (ret);
-}
-
-static int
-nit_setflags(int fd, int promisc, int to_ms, char *ebuf)
-{
- struct nit_ioc nioc;
-
- memset(&nioc, 0, sizeof(nioc));
- nioc.nioc_bufspace = BUFSPACE;
- nioc.nioc_chunksize = CHUNKSIZE;
- nioc.nioc_typetomatch = NT_ALLTYPES;
- nioc.nioc_snaplen = p->snapshot;
- nioc.nioc_bufalign = sizeof(int);
- nioc.nioc_bufoffset = 0;
-
- if (to_ms != 0) {
- nioc.nioc_flags |= NF_TIMEOUT;
- nioc.nioc_timeout.tv_sec = to_ms / 1000;
- nioc.nioc_timeout.tv_usec = (to_ms * 1000) % 1000000;
- }
- if (promisc)
- nioc.nioc_flags |= NF_PROMISC;
-
- if (ioctl(fd, SIOCSNIT, &nioc) < 0) {
- snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCSNIT: %s",
- pcap_strerror(errno));
- return (-1);
- }
- return (0);
-}
-
-static void
-pcap_close_nit(pcap_t *p)
-{
- pcap_close_common(p);
- if (p->device != NULL)
- free(p->device);
-}
-
-pcap_t *
-pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
- char *ebuf)
-{
- int fd;
- struct sockaddr_nit snit;
- register pcap_t *p;
-
- p = (pcap_t *)malloc(sizeof(*p));
- if (p == NULL) {
- strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE);
- return (NULL);
- }
-
- if (snaplen < 96)
- /*
- * NIT requires a snapshot length of at least 96.
- */
- snaplen = 96;
-
- memset(p, 0, sizeof(*p));
- p->fd = fd = socket(AF_NIT, SOCK_RAW, NITPROTO_RAW);
- if (fd < 0) {
- snprintf(ebuf, PCAP_ERRBUF_SIZE,
- "socket: %s", pcap_strerror(errno));
- goto bad;
- }
- snit.snit_family = AF_NIT;
- (void)strncpy(snit.snit_ifname, device, NITIFSIZ);
-
- if (bind(fd, (struct sockaddr *)&snit, sizeof(snit))) {
- snprintf(ebuf, PCAP_ERRBUF_SIZE,
- "bind: %s: %s", snit.snit_ifname, pcap_strerror(errno));
- goto bad;
- }
- p->snapshot = snaplen;
- nit_setflags(p->fd, promisc, to_ms, ebuf);
-
- /*
- * NIT supports only ethernets.
- */
- p->linktype = DLT_EN10MB;
-
- p->bufsize = BUFSPACE;
- p->buffer = (u_char *)malloc(p->bufsize);
- if (p->buffer == NULL) {
- strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE);
- goto bad;
- }
-
- /*
- * We need the device name in order to send packets.
- */
- p->device = strdup(device);
- if (p->device == NULL) {
- strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE);
- free(p->buffer);
- goto bad;
- }
-
- /*
- * "p->fd" is a socket, so "select()" should work on it.
- */
- p->selectable_fd = p->fd;
-
- /*
- * This is (presumably) a real Ethernet capture; give it a
- * link-layer-type list with DLT_EN10MB and DLT_DOCSIS, so
- * that an application can let you choose it, in case you're
- * capturing DOCSIS traffic that a Cisco Cable Modem
- * Termination System is putting out onto an Ethernet (it
- * doesn't put an Ethernet header onto the wire, it puts raw
- * DOCSIS frames out on the wire inside the low-level
- * Ethernet framing).
- */
- p->dlt_list = (u_int *) malloc(sizeof(u_int) * 2);
- /*
- * If that fails, just leave the list empty.
- */
- if (p->dlt_list != NULL) {
- p->dlt_list[0] = DLT_EN10MB;
- p->dlt_list[1] = DLT_DOCSIS;
- p->dlt_count = 2;
- }
-
- p->read_op = pcap_read_nit;
- p->inject_op = pcap_inject_nit;
- p->setfilter_op = install_bpf_program; /* no kernel filtering */
- p->setdirection_op = NULL; /* Not implemented. */
- p->set_datalink_op = NULL; /* can't change data link type */
- p->getnonblock_op = pcap_getnonblock_fd;
- p->setnonblock_op = pcap_setnonblock_fd;
- p->stats_op = pcap_stats_nit;
- p->close_op = pcap_close_nit;
-
- return (p);
- bad:
- if (fd >= 0)
- close(fd);
- free(p);
- return (NULL);
-}
-
-int
-pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf)
-{
- return (0);
-}
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