Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/if_arcnet.h b/include/linux/if_arcnet.h
new file mode 100644
index 0000000..af380cb
--- /dev/null
+++ b/include/linux/if_arcnet.h
@@ -0,0 +1,137 @@
+/*
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * Global definitions for the ARCnet interface.
+ *
+ * Authors: David Woodhouse and Avery Pennarun
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_IF_ARCNET_H
+#define _LINUX_IF_ARCNET_H
+
+#include <linux/if_ether.h>
+
+
+/*
+ * These are the defined ARCnet Protocol ID's.
+ */
+
+/* CAP mode */
+/* No macro but uses 1-8 */
+
+/* RFC1201 Protocol ID's */
+#define ARC_P_IP 212 /* 0xD4 */
+#define ARC_P_IPV6 196 /* 0xC4: RFC2497 */
+#define ARC_P_ARP 213 /* 0xD5 */
+#define ARC_P_RARP 214 /* 0xD6 */
+#define ARC_P_IPX 250 /* 0xFA */
+#define ARC_P_NOVELL_EC 236 /* 0xEC */
+
+/* Old RFC1051 Protocol ID's */
+#define ARC_P_IP_RFC1051 240 /* 0xF0 */
+#define ARC_P_ARP_RFC1051 241 /* 0xF1 */
+
+/* MS LanMan/WfWg "NDIS" encapsulation */
+#define ARC_P_ETHER 232 /* 0xE8 */
+
+/* Unsupported/indirectly supported protocols */
+#define ARC_P_DATAPOINT_BOOT 0 /* very old Datapoint equipment */
+#define ARC_P_DATAPOINT_MOUNT 1
+#define ARC_P_POWERLAN_BEACON 8 /* Probably ATA-Netbios related */
+#define ARC_P_POWERLAN_BEACON2 243 /* 0xF3 */
+#define ARC_P_LANSOFT 251 /* 0xFB - what is this? */
+#define ARC_P_ATALK 0xDD
+
+/* Hardware address length */
+#define ARCNET_ALEN 1
+
+/*
+ * The RFC1201-specific components of an arcnet packet header.
+ */
+struct arc_rfc1201
+{
+ uint8_t proto; /* protocol ID field - varies */
+ uint8_t split_flag; /* for use with split packets */
+ uint16_t sequence; /* sequence number */
+ uint8_t payload[0]; /* space remaining in packet (504 bytes)*/
+};
+#define RFC1201_HDR_SIZE 4
+
+
+/*
+ * The RFC1051-specific components.
+ */
+struct arc_rfc1051
+{
+ uint8_t proto; /* ARC_P_RFC1051_ARP/RFC1051_IP */
+ uint8_t payload[0]; /* 507 bytes */
+};
+#define RFC1051_HDR_SIZE 1
+
+
+/*
+ * The ethernet-encap-specific components. We have a real ethernet header
+ * and some data.
+ */
+struct arc_eth_encap
+{
+ uint8_t proto; /* Always ARC_P_ETHER */
+ struct ethhdr eth; /* standard ethernet header (yuck!) */
+ uint8_t payload[0]; /* 493 bytes */
+};
+#define ETH_ENCAP_HDR_SIZE 14
+
+
+struct arc_cap
+{
+ uint8_t proto;
+ uint8_t cookie[sizeof(int)]; /* Actually NOT sent over the network */
+ union {
+ uint8_t ack;
+ uint8_t raw[0]; /* 507 bytes */
+ } mes;
+};
+
+/*
+ * The data needed by the actual arcnet hardware.
+ *
+ * Now, in the real arcnet hardware, the third and fourth bytes are the
+ * 'offset' specification instead of the length, and the soft data is at
+ * the _end_ of the 512-byte buffer. We hide this complexity inside the
+ * driver.
+ */
+struct arc_hardware
+{
+ uint8_t source, /* source ARCnet - filled in automagically */
+ dest, /* destination ARCnet - 0 for broadcast */
+ offset[2]; /* offset bytes (some weird semantics) */
+};
+#define ARC_HDR_SIZE 4
+
+/*
+ * This is an ARCnet frame header, as seen by the kernel (and userspace,
+ * when you do a raw packet capture).
+ */
+struct archdr
+{
+ /* hardware requirements */
+ struct arc_hardware hard;
+
+ /* arcnet encapsulation-specific bits */
+ union {
+ struct arc_rfc1201 rfc1201;
+ struct arc_rfc1051 rfc1051;
+ struct arc_eth_encap eth_encap;
+ struct arc_cap cap;
+ uint8_t raw[0]; /* 508 bytes */
+ } soft;
+};
+
+#endif /* _LINUX_IF_ARCNET_H */