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/hdlc.h b/include/linux/hdlc.h
new file mode 100644
index 0000000..503194e
--- /dev/null
+++ b/include/linux/hdlc.h
@@ -0,0 +1,258 @@
+/*
+ * Generic HDLC support routines for Linux
+ *
+ * Copyright (C) 1999-2003 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+#ifndef __HDLC_H
+#define __HDLC_H
+
+#define GENERIC_HDLC_VERSION 4 /* For synchronization with sethdlc utility */
+
+#define CLOCK_DEFAULT 0 /* Default setting */
+#define CLOCK_EXT 1 /* External TX and RX clock - DTE */
+#define CLOCK_INT 2 /* Internal TX and RX clock - DCE */
+#define CLOCK_TXINT 3 /* Internal TX and external RX clock */
+#define CLOCK_TXFROMRX 4 /* TX clock derived from external RX clock */
+
+
+#define ENCODING_DEFAULT 0 /* Default setting */
+#define ENCODING_NRZ 1
+#define ENCODING_NRZI 2
+#define ENCODING_FM_MARK 3
+#define ENCODING_FM_SPACE 4
+#define ENCODING_MANCHESTER 5
+
+
+#define PARITY_DEFAULT 0 /* Default setting */
+#define PARITY_NONE 1 /* No parity */
+#define PARITY_CRC16_PR0 2 /* CRC16, initial value 0x0000 */
+#define PARITY_CRC16_PR1 3 /* CRC16, initial value 0xFFFF */
+#define PARITY_CRC16_PR0_CCITT 4 /* CRC16, initial 0x0000, ITU-T version */
+#define PARITY_CRC16_PR1_CCITT 5 /* CRC16, initial 0xFFFF, ITU-T version */
+#define PARITY_CRC32_PR0_CCITT 6 /* CRC32, initial value 0x00000000 */
+#define PARITY_CRC32_PR1_CCITT 7 /* CRC32, initial value 0xFFFFFFFF */
+
+#define LMI_DEFAULT 0 /* Default setting */
+#define LMI_NONE 1 /* No LMI, all PVCs are static */
+#define LMI_ANSI 2 /* ANSI Annex D */
+#define LMI_CCITT 3 /* ITU-T Annex A */
+
+#define HDLC_MAX_MTU 1500 /* Ethernet 1500 bytes */
+#define HDLC_MAX_MRU (HDLC_MAX_MTU + 10 + 14 + 4) /* for ETH+VLAN over FR */
+
+
+#ifdef __KERNEL__
+
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <net/syncppp.h>
+#include <linux/hdlc/ioctl.h>
+
+
+typedef struct { /* Used in Cisco and PPP mode */
+ u8 address;
+ u8 control;
+ u16 protocol;
+}__attribute__ ((packed)) hdlc_header;
+
+
+
+typedef struct {
+ u32 type; /* code */
+ u32 par1;
+ u32 par2;
+ u16 rel; /* reliability */
+ u32 time;
+}__attribute__ ((packed)) cisco_packet;
+#define CISCO_PACKET_LEN 18
+#define CISCO_BIG_PACKET_LEN 20
+
+
+
+typedef struct pvc_device_struct {
+ struct net_device *master;
+ struct net_device *main;
+ struct net_device *ether; /* bridged Ethernet interface */
+ struct pvc_device_struct *next; /* Sorted in ascending DLCI order */
+ int dlci;
+ int open_count;
+
+ struct {
+ unsigned int new: 1;
+ unsigned int active: 1;
+ unsigned int exist: 1;
+ unsigned int deleted: 1;
+ unsigned int fecn: 1;
+ unsigned int becn: 1;
+ }state;
+}pvc_device;
+
+
+
+typedef struct hdlc_device_struct {
+ /* To be initialized by hardware driver */
+ struct net_device_stats stats;
+
+ /* used by HDLC layer to take control over HDLC device from hw driver*/
+ int (*attach)(struct net_device *dev,
+ unsigned short encoding, unsigned short parity);
+
+ /* hardware driver must handle this instead of dev->hard_start_xmit */
+ int (*xmit)(struct sk_buff *skb, struct net_device *dev);
+
+
+ /* Things below are for HDLC layer internal use only */
+ struct {
+ int (*open)(struct net_device *dev);
+ void (*close)(struct net_device *dev);
+
+ /* if open & DCD */
+ void (*start)(struct net_device *dev);
+ /* if open & !DCD */
+ void (*stop)(struct net_device *dev);
+
+ void (*detach)(struct hdlc_device_struct *hdlc);
+ int (*netif_rx)(struct sk_buff *skb);
+ unsigned short (*type_trans)(struct sk_buff *skb,
+ struct net_device *dev);
+ int id; /* IF_PROTO_HDLC/CISCO/FR/etc. */
+ }proto;
+
+ int carrier;
+ int open;
+ spinlock_t state_lock;
+
+ union {
+ struct {
+ fr_proto settings;
+ pvc_device *first_pvc;
+ int dce_pvc_count;
+
+ struct timer_list timer;
+ unsigned long last_poll;
+ int reliable;
+ int dce_changed;
+ int request;
+ int fullrep_sent;
+ u32 last_errors; /* last errors bit list */
+ u8 n391cnt;
+ u8 txseq; /* TX sequence number */
+ u8 rxseq; /* RX sequence number */
+ }fr;
+
+ struct {
+ cisco_proto settings;
+
+ struct timer_list timer;
+ unsigned long last_poll;
+ int up;
+ int request_sent;
+ u32 txseq; /* TX sequence number */
+ u32 rxseq; /* RX sequence number */
+ }cisco;
+
+ struct {
+ raw_hdlc_proto settings;
+ }raw_hdlc;
+
+ struct {
+ struct ppp_device pppdev;
+ struct ppp_device *syncppp_ptr;
+ int (*old_change_mtu)(struct net_device *dev,
+ int new_mtu);
+ }ppp;
+ }state;
+ void *priv;
+}hdlc_device;
+
+
+
+int hdlc_raw_ioctl(struct net_device *dev, struct ifreq *ifr);
+int hdlc_raw_eth_ioctl(struct net_device *dev, struct ifreq *ifr);
+int hdlc_cisco_ioctl(struct net_device *dev, struct ifreq *ifr);
+int hdlc_ppp_ioctl(struct net_device *dev, struct ifreq *ifr);
+int hdlc_fr_ioctl(struct net_device *dev, struct ifreq *ifr);
+int hdlc_x25_ioctl(struct net_device *dev, struct ifreq *ifr);
+
+
+/* Exported from hdlc.o */
+
+/* Called by hardware driver when a user requests HDLC service */
+int hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
+
+/* Must be used by hardware driver on module startup/exit */
+int register_hdlc_device(struct net_device *dev);
+void unregister_hdlc_device(struct net_device *dev);
+
+struct net_device *alloc_hdlcdev(void *priv);
+
+static __inline__ hdlc_device* dev_to_hdlc(struct net_device *dev)
+{
+ return netdev_priv(dev);
+}
+
+
+static __inline__ pvc_device* dev_to_pvc(struct net_device *dev)
+{
+ return (pvc_device*)dev->priv;
+}
+
+
+static __inline__ void debug_frame(const struct sk_buff *skb)
+{
+ int i;
+
+ for (i=0; i < skb->len; i++) {
+ if (i == 100) {
+ printk("...\n");
+ return;
+ }
+ printk(" %02X", skb->data[i]);
+ }
+ printk("\n");
+}
+
+
+/* Must be called by hardware driver when HDLC device is being opened */
+int hdlc_open(struct net_device *dev);
+/* Must be called by hardware driver when HDLC device is being closed */
+void hdlc_close(struct net_device *dev);
+/* Called by hardware driver when DCD line level changes */
+void hdlc_set_carrier(int on, struct net_device *dev);
+
+/* May be used by hardware driver to gain control over HDLC device */
+static __inline__ void hdlc_proto_detach(hdlc_device *hdlc)
+{
+ if (hdlc->proto.detach)
+ hdlc->proto.detach(hdlc);
+ hdlc->proto.detach = NULL;
+}
+
+
+static __inline__ struct net_device_stats *hdlc_stats(struct net_device *dev)
+{
+ return &dev_to_hdlc(dev)->stats;
+}
+
+
+static __inline__ unsigned short hdlc_type_trans(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ hdlc_device *hdlc = dev_to_hdlc(dev);
+
+ skb->mac.raw = skb->data;
+ skb->dev = dev;
+
+ if (hdlc->proto.type_trans)
+ return hdlc->proto.type_trans(skb, dev);
+ else
+ return htons(ETH_P_HDLC);
+}
+
+#endif /* __KERNEL */
+#endif /* __HDLC_H */