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, 139 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/dccp.h b/freebsd/contrib/tcpdump/dccp.h
new file mode 100644
index 00000000..5c66e23c
--- /dev/null
+++ b/freebsd/contrib/tcpdump/dccp.h
@@ -0,0 +1,139 @@
+/* @(#) $Header: /tcpdump/master/tcpdump/dccp.h,v 1.5 2006-11-02 09:05:23 hannes Exp $ (LBL) */
+/*
+ * Copyright (C) Arnaldo Carvalho de Melo 2004
+ * Copyright (C) Ian McDonald 2005 <iam4@cs.waikato.ac.nz>
+ * Copyright (C) Yoshifumi Nishida 2005
+ *
+ * This software may be distributed either under the terms of the
+ * BSD-style license that accompanies tcpdump or the GNU GPL version 2
+ */
+
+#ifndef __DCCP_HDR__
+#define __DCCP_HDR__
+
+/**
+ * struct dccp_hdr - generic part of DCCP packet header
+ *
+ * @dccph_sport - Relevant port on the endpoint that sent this packet
+ * @dccph_dport - Relevant port on the other endpoint
+ * @dccph_doff - Data Offset from the start of the DCCP header, in 32-bit words
+ * @dccph_ccval - Used by the HC-Sender CCID
+ * @dccph_cscov - Parts of the packet that are covered by the Checksum field
+ * @dccph_checksum - Internet checksum, depends on dccph_cscov
+ * @dccph_x - 0 = 24 bit sequence number, 1 = 48
+ * @dccph_type - packet type, see DCCP_PKT_ prefixed macros
+ * @dccph_seq - sequence number high or low order 24 bits, depends on dccph_x
+ */
+struct dccp_hdr {
+	u_int16_t	dccph_sport,
+			dccph_dport;
+	u_int8_t	dccph_doff;
+	u_int8_t	dccph_ccval_cscov;
+	u_int16_t	dccph_checksum;
+	union {
+	u_int8_t	dccph_xtr;
+	u_int32_t	dccph_seq;
+	}		dccph_xtrs;
+};
+
+#define DCCPH_CCVAL(dh)	(((dh)->dccph_ccval_cscov >> 4) & 0xF)
+#define DCCPH_CSCOV(dh)	(((dh)->dccph_ccval_cscov) & 0xF)
+
+#define DCCPH_X(dh)	((dh)->dccph_xtrs.dccph_xtr & 1)
+#define DCCPH_TYPE(dh)	(((dh)->dccph_xtrs.dccph_xtr >> 1) & 0xF)
+#define DCCPH_SEQ(dh)   (((dh)->dccph_xtrs.dccph_seq) >> 8)
+
+/**
+ * struct dccp_hdr_ext - the low bits of a 48 bit seq packet
+ *
+ * @dccph_seq_low - low 24 bits of a 48 bit seq packet
+ */
+struct dccp_hdr_ext {
+	u_int32_t	dccph_seq_low;
+};
+
+/**
+ * struct dccp_hdr_request - Conection initiation request header
+ *
+ * @dccph_req_service - Service to which the client app wants to connect
+ */
+struct dccp_hdr_request {
+	u_int32_t	dccph_req_service;
+};
+
+/**
+ * struct dccp_hdr_ack_bits - acknowledgment bits common to most packets
+ *
+ * @dccph_resp_ack_nr_high - 48 bit ack number high order bits, contains GSR
+ * @dccph_resp_ack_nr_low - 48 bit ack number low order bits, contains GSR
+ */
+struct dccp_hdr_ack_bits {
+	u_int32_t	dccph_ra;
+	u_int32_t	dccph_ack_nr_low;
+};
+
+#define DCCPH_ACK(dh_ack)   ((dh_ack)->dccph_ra >> 8)
+
+/**
+ * struct dccp_hdr_response - Conection initiation response header
+ *
+ * @dccph_resp_ack_nr_high - 48 bit ack number high order bits, contains GSR
+ * @dccph_resp_ack_nr_low - 48 bit ack number low order bits, contains GSR
+ * @dccph_resp_service - Echoes the Service Code on a received DCCP-Request
+ */
+struct dccp_hdr_response {
+	struct dccp_hdr_ack_bits	dccph_resp_ack;
+	u_int32_t			dccph_resp_service;
+};
+
+#if 0
+static inline struct dccp_hdr_data *dccp_hdr_data(struct dccp_hdr *hdrg)
+{
+	const int ext = DCCPH_X(hdrg) ? sizeof(struct dccp_hdr_ext) : 0;
+
+	return (struct dccp_hdr_data *)(((u_char *)hdrg) + sizeof(hdrg) + ext);
+}
+#endif
+
+/**
+ * struct dccp_hdr_reset - Unconditionally shut down a connection
+ *
+ * @dccph_reset_service - Echoes the Service Code on a received DCCP-Request
+ */
+struct dccp_hdr_reset {
+	struct dccp_hdr_ack_bits	dccph_reset_ack;
+	u_int8_t			dccph_reset_code,
+					dccph_reset_data[3];
+};
+
+enum dccp_pkt_type {
+	DCCP_PKT_REQUEST = 0,
+	DCCP_PKT_RESPONSE,
+	DCCP_PKT_DATA,
+	DCCP_PKT_ACK,
+	DCCP_PKT_DATAACK,
+	DCCP_PKT_CLOSEREQ,
+	DCCP_PKT_CLOSE,
+	DCCP_PKT_RESET,
+	DCCP_PKT_SYNC,
+	DCCP_PKT_SYNCACK,
+	DCCP_PKT_INVALID
+};
+
+enum dccp_reset_codes {
+	DCCP_RESET_CODE_UNSPECIFIED = 0,
+	DCCP_RESET_CODE_CLOSED,
+	DCCP_RESET_CODE_ABORTED,
+	DCCP_RESET_CODE_NO_CONNECTION,
+	DCCP_RESET_CODE_PACKET_ERROR,
+	DCCP_RESET_CODE_OPTION_ERROR,
+	DCCP_RESET_CODE_MANDATORY_ERROR,
+	DCCP_RESET_CODE_CONNECTION_REFUSED,
+	DCCP_RESET_CODE_BAD_SERVICE_CODE,
+	DCCP_RESET_CODE_TOO_BUSY,
+	DCCP_RESET_CODE_BAD_INIT_COOKIE,
+	DCCP_RESET_CODE_AGGRESSION_PENALTY,
+	__DCCP_RESET_CODE_LAST
+};
+
+#endif /* __DCCP_HDR__ */