Add a new driver to support IP over firewire. This driver is intended to

conform to the rfc2734 and rfc3146 standard for IP over firewire and
should eventually supercede the fwe driver. Right now the broadcast
channel number is hardwired and we don't support MCAP for multicast
channel allocation - more infrastructure is required in the firewire
code itself to fix these problems.

1 files changed, 141 insertions, 0 deletions

diff --git a/sys/net/firewire.h b/sys/net/firewire.h
new file mode 100644
index 0000000..86cd023
--- /dev/null
+++ b/sys/net/firewire.h
@@ -0,0 +1,141 @@
+/*-
+ * Copyright (c) 2004 Doug Rabson
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
+ *
+ *	$FreeBSD$
+ */
+
+#ifndef _NET_FIREWIRE_H_
+#define _NET_FIREWIRE_H_
+
+#define FW_ENCAP_UNFRAG		0
+#define FW_ENCAP_FIRST		1
+#define FW_ENCAP_LAST		2
+#define FW_ENCAP_NEXT		3
+
+union fw_encap {
+		uint32_t ul[2];
+		struct {
+#if BYTE_ORDER == BIG_ENDIAN
+			uint32_t lf		:2;
+			uint32_t reserved	:14;
+			uint32_t ether_type	:16;
+#else
+			uint32_t ether_type	:16;
+			uint32_t reserved	:14;
+			uint32_t lf		:2;
+#endif
+		} unfrag;
+		struct {
+#if BYTE_ORDER == BIG_ENDIAN
+			uint32_t lf		:2;
+			uint32_t reserved1	:2;
+			uint32_t datagram_size	:12
+			uint32_t ether_type	:16;
+			uint32_t dgl		:16;
+			uint32_t reserved2	:16;
+#else
+			uint32_t ether_type	:16;
+			uint32_t datagram_size	:12;
+			uint32_t reserved1	:2;
+			uint32_t lf		:2;
+			uint32_t reserved2	:16;
+			uint32_t dgl		:16;
+#endif
+		} firstfrag;
+		struct {
+#if BYTE_ORDER == BIG_ENDIAN
+			uint32_t lf		:2;
+			uint32_t reserved1	:2;
+			uint32_t datagram_size	:12
+			uint32_t reserved2	:4;
+			uint32_t fragment_offset :12;
+			uint32_t dgl		:16;
+			uint32_t reserved3	:16;
+#else
+			uint32_t fragment_offset :12;
+			uint32_t reserved2	:4;
+			uint32_t datagram_size	:12;
+			uint32_t reserved1	:2;
+			uint32_t lf		:2;
+			uint32_t reserved3	:16;
+			uint32_t dgl		:16;
+#endif
+		} nextfrag;
+};
+
+#define MTAG_FIREWIRE			1394
+#define MTAG_FIREWIRE_HWADDR		0
+#define MTAG_FIREWIRE_SENDER_EUID	1
+
+struct fw_hwaddr {
+	uint32_t		sender_unique_ID_hi;
+	uint32_t		sender_unique_ID_lo;
+	uint8_t			sender_max_rec;
+	uint8_t			sspd;
+	uint16_t		sender_unicast_FIFO_hi;
+	uint32_t		sender_unicast_FIFO_lo;
+};
+
+/*
+ * BPF wants to see one of these.
+ */
+struct fw_bpfhdr {
+	uint8_t			firewire_dhost[8];
+	uint8_t			firewire_shost[8];
+	uint16_t		firewire_type;
+};
+
+#ifdef _KERNEL
+
+/*
+ * A structure to track the reassembly of a link-level fragmented
+ * datagram.
+ */
+struct fw_reass {
+	STAILQ_ENTRY(fw_reass)	fr_link;
+	uint32_t		fr_id;		/* host+dgl */
+	struct mbuf		*fr_frags;	/* chain of frags */
+};
+STAILQ_HEAD(fw_reass_list, fw_reass);
+
+struct fw_com {
+	struct ifnet		fc_if;
+	struct fw_hwaddr	fc_hwaddr;
+	struct firewire_comm	*fc_fc;
+	uint8_t			fc_broadcast_channel;
+	uint8_t			fc_speed;	/* our speed */
+	uint16_t		fc_node;	/* our nodeid */
+	struct fw_reass_list	fc_frags;	/* partial datagrams */
+};
+
+extern	void	firewire_input(struct ifnet *ifp, struct mbuf *m, uint16_t src);
+extern	void	firewire_ifattach(struct ifnet *, struct fw_hwaddr *);
+extern	void	firewire_ifdetach(struct ifnet *);
+extern	void	firewire_busreset(struct ifnet *);
+extern	int	firewire_ioctl(struct ifnet *, int, caddr_t);
+
+#endif /* !_KERNEL */
+
+#endif /* !_NET_FIREWIRE_H_ */