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, 347 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/ieee802_11.h b/freebsd/contrib/tcpdump/ieee802_11.h
new file mode 100644
index 00000000..2aa13450
--- /dev/null
+++ b/freebsd/contrib/tcpdump/ieee802_11.h
@@ -0,0 +1,347 @@
+/* @(#) $Header: /tcpdump/master/tcpdump/ieee802_11.h,v 1.12 2007-07-22 19:59:06 guy Exp $ (LBL) */
+/*
+ * Copyright (c) 2001
+ *	Fortress Technologies
+ *      Charlie Lenahan ( clenahan@fortresstech.com )
+ *
+ * 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.
+ */
+
+/* Lengths of 802.11 header components. */
+#define	IEEE802_11_FC_LEN		2
+#define	IEEE802_11_DUR_LEN		2
+#define	IEEE802_11_DA_LEN		6
+#define	IEEE802_11_SA_LEN		6
+#define	IEEE802_11_BSSID_LEN		6
+#define	IEEE802_11_RA_LEN		6
+#define	IEEE802_11_TA_LEN		6
+#define	IEEE802_11_SEQ_LEN		2
+#define	IEEE802_11_CTL_LEN		2
+#define	IEEE802_11_IV_LEN		3
+#define	IEEE802_11_KID_LEN		1
+
+/* Frame check sequence length. */
+#define	IEEE802_11_FCS_LEN		4
+
+/* Lengths of beacon components. */
+#define	IEEE802_11_TSTAMP_LEN		8
+#define	IEEE802_11_BCNINT_LEN		2
+#define	IEEE802_11_CAPINFO_LEN		2
+#define	IEEE802_11_LISTENINT_LEN	2
+
+#define	IEEE802_11_AID_LEN		2
+#define	IEEE802_11_STATUS_LEN		2
+#define	IEEE802_11_REASON_LEN		2
+
+/* Length of previous AP in reassocation frame */
+#define	IEEE802_11_AP_LEN		6
+
+#define	T_MGMT 0x0  /* management */
+#define	T_CTRL 0x1  /* control */
+#define	T_DATA 0x2 /* data */
+#define	T_RESV 0x3  /* reserved */
+
+#define	ST_ASSOC_REQUEST   	0x0
+#define	ST_ASSOC_RESPONSE 	0x1
+#define	ST_REASSOC_REQUEST   	0x2
+#define	ST_REASSOC_RESPONSE  	0x3
+#define	ST_PROBE_REQUEST   	0x4
+#define	ST_PROBE_RESPONSE   	0x5
+/* RESERVED 			0x6  */
+/* RESERVED 			0x7  */
+#define	ST_BEACON   		0x8
+#define	ST_ATIM			0x9
+#define	ST_DISASSOC		0xA
+#define	ST_AUTH			0xB
+#define	ST_DEAUTH		0xC
+#define	ST_ACTION		0xD
+/* RESERVED 			0xE  */
+/* RESERVED 			0xF  */
+
+
+#define CTRL_CONTROL_WRAPPER	0x7
+#define	CTRL_BAR	0x8
+#define	CTRL_BA		0x9
+#define	CTRL_PS_POLL	0xA
+#define	CTRL_RTS	0xB
+#define	CTRL_CTS	0xC
+#define	CTRL_ACK	0xD
+#define	CTRL_CF_END	0xE
+#define	CTRL_END_ACK	0xF
+
+#define	DATA_DATA			0x0
+#define	DATA_DATA_CF_ACK		0x1
+#define	DATA_DATA_CF_POLL		0x2
+#define	DATA_DATA_CF_ACK_POLL		0x3
+#define	DATA_NODATA			0x4
+#define	DATA_NODATA_CF_ACK		0x5
+#define	DATA_NODATA_CF_POLL		0x6
+#define	DATA_NODATA_CF_ACK_POLL		0x7
+
+#define DATA_QOS_DATA			0x8
+#define DATA_QOS_DATA_CF_ACK		0x9
+#define DATA_QOS_DATA_CF_POLL		0xA
+#define DATA_QOS_DATA_CF_ACK_POLL	0xB
+#define DATA_QOS_NODATA			0xC
+#define DATA_QOS_CF_POLL_NODATA		0xE
+#define DATA_QOS_CF_ACK_POLL_NODATA	0xF
+
+/*
+ * The subtype field of a data frame is, in effect, composed of 4 flag
+ * bits - CF-Ack, CF-Poll, Null (means the frame doesn't actually have
+ * any data), and QoS.
+ */
+#define DATA_FRAME_IS_CF_ACK(x)		((x) & 0x01)
+#define DATA_FRAME_IS_CF_POLL(x)	((x) & 0x02)
+#define DATA_FRAME_IS_NULL(x)		((x) & 0x04)
+#define DATA_FRAME_IS_QOS(x)		((x) & 0x08)
+
+/*
+ * Bits in the frame control field.
+ */
+#define	FC_VERSION(fc)		((fc) & 0x3)
+#define	FC_TYPE(fc)		(((fc) >> 2) & 0x3)
+#define	FC_SUBTYPE(fc)		(((fc) >> 4) & 0xF)
+#define	FC_TO_DS(fc)		((fc) & 0x0100)
+#define	FC_FROM_DS(fc)		((fc) & 0x0200)
+#define	FC_MORE_FLAG(fc)	((fc) & 0x0400)
+#define	FC_RETRY(fc)		((fc) & 0x0800)
+#define	FC_POWER_MGMT(fc)	((fc) & 0x1000)
+#define	FC_MORE_DATA(fc)	((fc) & 0x2000)
+#define	FC_WEP(fc)		((fc) & 0x4000)
+#define	FC_ORDER(fc)		((fc) & 0x8000)
+
+struct mgmt_header_t {
+	u_int16_t	fc;
+	u_int16_t 	duration;
+	u_int8_t	da[6];
+	u_int8_t	sa[6];
+	u_int8_t	bssid[6];
+	u_int16_t	seq_ctrl;
+};
+
+#define	MGMT_HDRLEN	(IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+			 IEEE802_11_DA_LEN+IEEE802_11_SA_LEN+\
+			 IEEE802_11_BSSID_LEN+IEEE802_11_SEQ_LEN)
+
+#define	CAPABILITY_ESS(cap)	((cap) & 0x0001)
+#define	CAPABILITY_IBSS(cap)	((cap) & 0x0002)
+#define	CAPABILITY_CFP(cap)	((cap) & 0x0004)
+#define	CAPABILITY_CFP_REQ(cap)	((cap) & 0x0008)
+#define	CAPABILITY_PRIVACY(cap)	((cap) & 0x0010)
+
+struct ssid_t {
+	u_int8_t	element_id;
+	u_int8_t	length;
+	u_char		ssid[33];  /* 32 + 1 for null */
+};
+
+struct rates_t {
+	u_int8_t	element_id;
+	u_int8_t	length;
+	u_int8_t	rate[16];
+};
+
+struct challenge_t {
+	u_int8_t	element_id;
+	u_int8_t	length;
+	u_int8_t	text[254]; /* 1-253 + 1 for null */
+};
+
+struct fh_t {
+	u_int8_t	element_id;
+	u_int8_t	length;
+	u_int16_t	dwell_time;
+	u_int8_t	hop_set;
+	u_int8_t 	hop_pattern;
+	u_int8_t	hop_index;
+};
+
+struct ds_t {
+	u_int8_t	element_id;
+	u_int8_t	length;
+	u_int8_t	channel;
+};
+
+struct cf_t {
+	u_int8_t	element_id;
+	u_int8_t	length;
+	u_int8_t	count;
+	u_int8_t	period;
+	u_int16_t	max_duration;
+	u_int16_t	dur_remaing;
+};
+
+struct tim_t {
+	u_int8_t	element_id;
+	u_int8_t	length;
+	u_int8_t	count;
+	u_int8_t	period;
+	u_int8_t	bitmap_control;
+	u_int8_t	bitmap[251];
+};
+
+#define	E_SSID 		0
+#define	E_RATES 	1
+#define	E_FH	 	2
+#define	E_DS 		3
+#define	E_CF	 	4
+#define	E_TIM	 	5
+#define	E_IBSS 		6
+/* reserved 		7 */
+/* reserved 		8 */
+/* reserved 		9 */
+/* reserved 		10 */
+/* reserved 		11 */
+/* reserved 		12 */
+/* reserved 		13 */
+/* reserved 		14 */
+/* reserved 		15 */
+/* reserved 		16 */
+
+#define	E_CHALLENGE 	16
+/* reserved 		17 */
+/* reserved 		18 */
+/* reserved 		19 */
+/* reserved 		16 */
+/* reserved 		16 */
+
+
+struct mgmt_body_t {
+	u_int8_t   	timestamp[IEEE802_11_TSTAMP_LEN];
+	u_int16_t  	beacon_interval;
+	u_int16_t 	listen_interval;
+	u_int16_t 	status_code;
+	u_int16_t 	aid;
+	u_char		ap[IEEE802_11_AP_LEN];
+	u_int16_t	reason_code;
+	u_int16_t	auth_alg;
+	u_int16_t	auth_trans_seq_num;
+	int		challenge_present;
+	struct challenge_t  challenge;
+	u_int16_t	capability_info;
+	int		ssid_present;
+	struct ssid_t	ssid;
+	int		rates_present;
+	struct rates_t 	rates;
+	int		ds_present;
+	struct ds_t	ds;
+	int		cf_present;
+	struct cf_t	cf;
+	int		fh_present;
+	struct fh_t	fh;
+	int		tim_present;
+	struct tim_t	tim;
+};
+
+struct ctrl_rts_t {
+	u_int16_t	fc;
+	u_int16_t	duration;
+	u_int8_t	ra[6];
+	u_int8_t	ta[6];
+	u_int8_t	fcs[4];
+};
+
+#define	CTRL_RTS_HDRLEN	(IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+			 IEEE802_11_RA_LEN+IEEE802_11_TA_LEN)
+
+struct ctrl_cts_t {
+	u_int16_t	fc;
+	u_int16_t	duration;
+	u_int8_t	ra[6];
+	u_int8_t	fcs[4];
+};
+
+#define	CTRL_CTS_HDRLEN	(IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
+
+struct ctrl_ack_t {
+	u_int16_t	fc;
+	u_int16_t	duration;
+	u_int8_t	ra[6];
+	u_int8_t	fcs[4];
+};
+
+#define	CTRL_ACK_HDRLEN	(IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
+
+struct ctrl_ps_poll_t {
+	u_int16_t	fc;
+	u_int16_t	aid;
+	u_int8_t	bssid[6];
+	u_int8_t	ta[6];
+	u_int8_t	fcs[4];
+};
+
+#define	CTRL_PS_POLL_HDRLEN	(IEEE802_11_FC_LEN+IEEE802_11_AID_LEN+\
+				 IEEE802_11_BSSID_LEN+IEEE802_11_TA_LEN)
+
+struct ctrl_end_t {
+	u_int16_t	fc;
+	u_int16_t	duration;
+	u_int8_t	ra[6];
+	u_int8_t	bssid[6];
+	u_int8_t	fcs[4];
+};
+
+#define	CTRL_END_HDRLEN	(IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+			 IEEE802_11_RA_LEN+IEEE802_11_BSSID_LEN)
+
+struct ctrl_end_ack_t {
+	u_int16_t	fc;
+	u_int16_t	duration;
+	u_int8_t	ra[6];
+	u_int8_t	bssid[6];
+	u_int8_t	fcs[4];
+};
+
+#define	CTRL_END_ACK_HDRLEN	(IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+				 IEEE802_11_RA_LEN+IEEE802_11_BSSID_LEN)
+
+struct ctrl_ba_t {
+	u_int16_t	fc;
+	u_int16_t	duration;
+	u_int8_t	ra[6];
+	u_int8_t	fcs[4];
+};
+
+#define	CTRL_BA_HDRLEN	(IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
+
+struct ctrl_bar_t {
+	u_int16_t	fc;
+	u_int16_t	dur;
+	u_int8_t	ra[6];
+	u_int8_t	ta[6];
+	u_int16_t	ctl;
+	u_int16_t	seq;
+	u_int8_t	fcs[4];
+};
+
+#define	CTRL_BAR_HDRLEN		(IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+				 IEEE802_11_RA_LEN+IEEE802_11_TA_LEN+\
+				 IEEE802_11_CTL_LEN+IEEE802_11_SEQ_LEN)
+
+struct meshcntl_t {
+	u_int8_t	flags;
+	u_int8_t	ttl;
+	u_int8_t	seq[4];
+	u_int8_t	addr4[6];
+	u_int8_t	addr5[6];
+	u_int8_t	addr6[6];
+};
+
+#define	IV_IV(iv)	((iv) & 0xFFFFFF)
+#define	IV_PAD(iv)	(((iv) >> 24) & 0x3F)
+#define	IV_KEYID(iv)	(((iv) >> 30) & 0x03)