Add tcpdump and libpcap.

- Update the file builder generator to handle generator specific cflags and
  includes. The tcpdump and libpcap have localised headers and need specific
  headers paths to see them. There are also module specific flags and these
  need to be passed to the lex and yacc generators.

- Add the tcpdump support.

1 files changed, 291 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/ieee802_11_radio.h b/freebsd/contrib/tcpdump/ieee802_11_radio.h
new file mode 100644
index 00000000..812b5ac3
--- /dev/null
+++ b/freebsd/contrib/tcpdump/ieee802_11_radio.h
@@ -0,0 +1,291 @@
+/* $FreeBSD$ */
+/* NetBSD: ieee802_11_radio.h,v 1.2 2006/02/26 03:04:03 dyoung Exp  */
+/* $Header: /tcpdump/master/tcpdump/ieee802_11_radio.h,v 1.3 2007-08-29 02:31:44 mcr Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004 David Young.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. The name of David Young may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``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 DAVID
+ * YOUNG 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.
+ */
+#ifndef _NET_IF_IEEE80211RADIOTAP_H_
+#define _NET_IF_IEEE80211RADIOTAP_H_
+
+/* A generic radio capture format is desirable. It must be
+ * rigidly defined (e.g., units for fields should be given),
+ * and easily extensible.
+ *
+ * The following is an extensible radio capture format. It is
+ * based on a bitmap indicating which fields are present.
+ *
+ * I am trying to describe precisely what the application programmer
+ * should expect in the following, and for that reason I tell the
+ * units and origin of each measurement (where it applies), or else I
+ * use sufficiently weaselly language ("is a monotonically nondecreasing
+ * function of...") that I cannot set false expectations for lawyerly
+ * readers.
+ */
+
+/*
+ * The radio capture header precedes the 802.11 header.
+ *
+ * Note well: all radiotap fields are little-endian.
+ */
+struct ieee80211_radiotap_header {
+	u_int8_t	it_version;	/* Version 0. Only increases
+					 * for drastic changes,
+					 * introduction of compatible
+					 * new fields does not count.
+					 */
+	u_int8_t	it_pad;
+	u_int16_t       it_len;         /* length of the whole
+					 * header in bytes, including
+					 * it_version, it_pad,
+					 * it_len, and data fields.
+					 */
+	u_int32_t       it_present;     /* A bitmap telling which
+					 * fields are present. Set bit 31
+					 * (0x80000000) to extend the
+					 * bitmap by another 32 bits.
+					 * Additional extensions are made
+					 * by setting bit 31.
+					 */
+};
+
+/* Name                                 Data type       Units
+ * ----                                 ---------       -----
+ *
+ * IEEE80211_RADIOTAP_TSFT              u_int64_t       microseconds
+ *
+ *      Value in microseconds of the MAC's 64-bit 802.11 Time
+ *      Synchronization Function timer when the first bit of the
+ *      MPDU arrived at the MAC. For received frames, only.
+ *
+ * IEEE80211_RADIOTAP_CHANNEL           2 x u_int16_t   MHz, bitmap
+ *
+ *      Tx/Rx frequency in MHz, followed by flags (see below).
+ *	Note that IEEE80211_RADIOTAP_XCHANNEL must be used to
+ *	represent an HT channel as there is not enough room in
+ *	the flags word.
+ *
+ * IEEE80211_RADIOTAP_FHSS              u_int16_t       see below
+ *
+ *      For frequency-hopping radios, the hop set (first byte)
+ *      and pattern (second byte).
+ *
+ * IEEE80211_RADIOTAP_RATE              u_int8_t        500kb/s or index
+ *
+ *      Tx/Rx data rate.  If bit 0x80 is set then it represents an
+ *	an MCS index and not an IEEE rate.
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTSIGNAL     int8_t          decibels from
+ *                                                      one milliwatt (dBm)
+ *
+ *      RF signal power at the antenna, decibel difference from
+ *      one milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTNOISE      int8_t          decibels from
+ *                                                      one milliwatt (dBm)
+ *
+ *      RF noise power at the antenna, decibel difference from one
+ *      milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTSIGNAL      u_int8_t        decibel (dB)
+ *
+ *      RF signal power at the antenna, decibel difference from an
+ *      arbitrary, fixed reference.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTNOISE       u_int8_t        decibel (dB)
+ *
+ *      RF noise power at the antenna, decibel difference from an
+ *      arbitrary, fixed reference point.
+ *
+ * IEEE80211_RADIOTAP_LOCK_QUALITY      u_int16_t       unitless
+ *
+ *      Quality of Barker code lock. Unitless. Monotonically
+ *      nondecreasing with "better" lock strength. Called "Signal
+ *      Quality" in datasheets.  (Is there a standard way to measure
+ *      this?)
+ *
+ * IEEE80211_RADIOTAP_TX_ATTENUATION    u_int16_t       unitless
+ *
+ *      Transmit power expressed as unitless distance from max
+ *      power set at factory calibration.  0 is max power.
+ *      Monotonically nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DB_TX_ATTENUATION u_int16_t       decibels (dB)
+ *
+ *      Transmit power expressed as decibel distance from max power
+ *      set at factory calibration.  0 is max power.  Monotonically
+ *      nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DBM_TX_POWER      int8_t          decibels from
+ *                                                      one milliwatt (dBm)
+ *
+ *      Transmit power expressed as dBm (decibels from a 1 milliwatt
+ *      reference). This is the absolute power level measured at
+ *      the antenna port.
+ *
+ * IEEE80211_RADIOTAP_FLAGS             u_int8_t        bitmap
+ *
+ *      Properties of transmitted and received frames. See flags
+ *      defined below.
+ *
+ * IEEE80211_RADIOTAP_ANTENNA           u_int8_t        antenna index
+ *
+ *      Unitless indication of the Rx/Tx antenna for this packet.
+ *      The first antenna is antenna 0.
+ *
+ * IEEE80211_RADIOTAP_RX_FLAGS          u_int16_t       bitmap
+ *
+ *     Properties of received frames. See flags defined below.
+ *
+ * IEEE80211_RADIOTAP_XCHANNEL          u_int32_t	bitmap
+ *					u_int16_t	MHz
+ *					u_int8_t	channel number
+ *					u_int8_t	.5 dBm
+ *
+ *	Extended channel specification: flags (see below) followed by
+ *	frequency in MHz, the corresponding IEEE channel number, and
+ *	finally the maximum regulatory transmit power cap in .5 dBm
+ *	units.  This property supersedes IEEE80211_RADIOTAP_CHANNEL
+ *	and only one of the two should be present.
+ *
+ * IEEE80211_RADIOTAP_MCS		u_int8_t	known
+ *					u_int8_t	flags
+ *					u_int8_t	mcs
+ *
+ *	Bitset indicating which fields have known values, followed
+ *	by bitset of flag values, followed by the MCS rate index as
+ *	in IEEE 802.11n.
+ *
+ * IEEE80211_RADIOTAP_VENDOR_NAMESPACE
+ *					u_int8_t  OUI[3]
+ *                                   u_int8_t  subspace
+ *                                   u_int16_t length
+ *
+ *     The Vendor Namespace Field contains three sub-fields. The first
+ *     sub-field is 3 bytes long. It contains the vendor's IEEE 802
+ *     Organizationally Unique Identifier (OUI). The fourth byte is a
+ *     vendor-specific "namespace selector."
+ *
+ */
+enum ieee80211_radiotap_type {
+	IEEE80211_RADIOTAP_TSFT = 0,
+	IEEE80211_RADIOTAP_FLAGS = 1,
+	IEEE80211_RADIOTAP_RATE = 2,
+	IEEE80211_RADIOTAP_CHANNEL = 3,
+	IEEE80211_RADIOTAP_FHSS = 4,
+	IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5,
+	IEEE80211_RADIOTAP_DBM_ANTNOISE = 6,
+	IEEE80211_RADIOTAP_LOCK_QUALITY = 7,
+	IEEE80211_RADIOTAP_TX_ATTENUATION = 8,
+	IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9,
+	IEEE80211_RADIOTAP_DBM_TX_POWER = 10,
+	IEEE80211_RADIOTAP_ANTENNA = 11,
+	IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
+	IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
+	IEEE80211_RADIOTAP_RX_FLAGS = 14,
+	/* NB: gap for netbsd definitions */
+	IEEE80211_RADIOTAP_XCHANNEL = 18,
+	IEEE80211_RADIOTAP_MCS = 19,
+	IEEE80211_RADIOTAP_NAMESPACE = 29,
+	IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30,
+	IEEE80211_RADIOTAP_EXT = 31
+};
+
+/* channel attributes */
+#define	IEEE80211_CHAN_TURBO	0x00010	/* Turbo channel */
+#define	IEEE80211_CHAN_CCK	0x00020	/* CCK channel */
+#define	IEEE80211_CHAN_OFDM	0x00040	/* OFDM channel */
+#define	IEEE80211_CHAN_2GHZ	0x00080	/* 2 GHz spectrum channel. */
+#define	IEEE80211_CHAN_5GHZ	0x00100	/* 5 GHz spectrum channel */
+#define	IEEE80211_CHAN_PASSIVE	0x00200	/* Only passive scan allowed */
+#define	IEEE80211_CHAN_DYN	0x00400	/* Dynamic CCK-OFDM channel */
+#define	IEEE80211_CHAN_GFSK	0x00800	/* GFSK channel (FHSS PHY) */
+#define	IEEE80211_CHAN_GSM	0x01000	/* 900 MHz spectrum channel */
+#define	IEEE80211_CHAN_STURBO	0x02000	/* 11a static turbo channel only */
+#define	IEEE80211_CHAN_HALF	0x04000	/* Half rate channel */
+#define	IEEE80211_CHAN_QUARTER	0x08000	/* Quarter rate channel */
+#define	IEEE80211_CHAN_HT20	0x10000	/* HT 20 channel */
+#define	IEEE80211_CHAN_HT40U	0x20000	/* HT 40 channel w/ ext above */
+#define	IEEE80211_CHAN_HT40D	0x40000	/* HT 40 channel w/ ext below */
+
+/* Useful combinations of channel characteristics, borrowed from Ethereal */
+#define IEEE80211_CHAN_A \
+        (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
+#define IEEE80211_CHAN_B \
+        (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
+#define IEEE80211_CHAN_G \
+        (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
+#define IEEE80211_CHAN_TA \
+        (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
+#define IEEE80211_CHAN_TG \
+        (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN  | IEEE80211_CHAN_TURBO)
+
+
+/* For IEEE80211_RADIOTAP_FLAGS */
+#define	IEEE80211_RADIOTAP_F_CFP	0x01	/* sent/received
+						 * during CFP
+						 */
+#define	IEEE80211_RADIOTAP_F_SHORTPRE	0x02	/* sent/received
+						 * with short
+						 * preamble
+						 */
+#define	IEEE80211_RADIOTAP_F_WEP	0x04	/* sent/received
+						 * with WEP encryption
+						 */
+#define	IEEE80211_RADIOTAP_F_FRAG	0x08	/* sent/received
+						 * with fragmentation
+						 */
+#define	IEEE80211_RADIOTAP_F_FCS	0x10	/* frame includes FCS */
+#define	IEEE80211_RADIOTAP_F_DATAPAD	0x20	/* frame has padding between
+						 * 802.11 header and payload
+						 * (to 32-bit boundary)
+						 */
+#define	IEEE80211_RADIOTAP_F_BADFCS	0x40	/* does not pass FCS check */
+
+/* For IEEE80211_RADIOTAP_RX_FLAGS */
+#define IEEE80211_RADIOTAP_F_RX_BADFCS	0x0001	/* frame failed crc check */
+#define IEEE80211_RADIOTAP_F_RX_PLCP_CRC	0x0002	/* frame failed PLCP CRC check */
+
+/* For IEEE80211_RADIOTAP_MCS known */
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_KNOWN		0x01
+#define IEEE80211_RADIOTAP_MCS_MCS_INDEX_KNOWN		0x02	/* MCS index field */
+#define IEEE80211_RADIOTAP_MCS_GUARD_INTERVAL_KNOWN	0x04
+#define IEEE80211_RADIOTAP_MCS_HT_FORMAT_KNOWN		0x08
+#define IEEE80211_RADIOTAP_MCS_FEC_TYPE_KNOWN		0x10
+
+/* For IEEE80211_RADIOTAP_MCS flags */
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_MASK	0x03
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_20	0
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_40	1
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_20L	2
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_20U	3
+#define IEEE80211_RADIOTAP_MCS_SHORT_GI		0x04 /* short guard interval */
+#define IEEE80211_RADIOTAP_MCS_HT_GREENFIELD	0x08
+#define IEEE80211_RADIOTAP_MCS_FEC_LDPC		0x10
+
+#endif /* _NET_IF_IEEE80211RADIOTAP_H_ */