patch-2.3.15 linux/net/atm/lec_arpc.h

• Lines: 117
• Date: Mon Aug 23 09:56:32 1999
• Orig file: v2.3.14/linux/net/atm/lec_arpc.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.14/linux/net/atm/lec_arpc.h linux/net/atm/lec_arpc.h
@@ -0,0 +1,116 @@
+/*
+ * Lec arp cache
+ * Marko Kiiskila carnil@cs.tut.fi
+ *
+ */
+#ifndef _LEC_ARP_H
+#define _LEC_ARP_H
+#include <linux/atm.h>
+#include <linux/atmdev.h>
+#include <linux/if_ether.h>
+#include <linux/atmlec.h>
+
+struct lec_arp_table {
+        struct lec_arp_table *next;          /* Linked entry list */
+        unsigned char atm_addr[ATM_ESA_LEN]; /* Atm address */
+        unsigned char mac_addr[ETH_ALEN];    /* Mac address */
+        int is_rdesc;                        /* Mac address is a route descriptor */
+        struct atm_vcc *vcc;                 /* Vcc this entry is attached */
+        struct atm_vcc *recv_vcc;            /* Vcc we receive data from */
+        void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb); 
+                                             /* Push that leads to daemon */
+        void (*old_recv_push)(struct atm_vcc *vcc, struct sk_buff *skb);
+                                             /* Push that leads to daemon */
+        void (*old_close)(struct atm_vcc *vcc);
+                                             /* We want to see when this
+                                              * vcc gets closed */
+        unsigned long last_used;             /* For expiry */
+        unsigned long timestamp;             /* Used for various timestamping
+                                              * things:
+                                              * 1. FLUSH started 
+                                              *    (status=ESI_FLUSH_PENDING)
+                                              * 2. Counting to 
+                                              *    max_unknown_frame_time
+                                              *    (status=ESI_ARP_PENDING||
+                                              *     status=ESI_VC_PENDING)
+                                              */
+        unsigned char no_tries;              /* No of times arp retry has been 
+                                                tried */
+        unsigned char status;                /* Status of this entry */
+        unsigned short flags;                /* Flags for this entry */
+        unsigned short packets_flooded;      /* Data packets flooded */
+        unsigned long flush_tran_id;         /* Transaction id in flush protocol */
+        struct timer_list timer;             /* Arping timer */
+        struct lec_priv *priv;               /* Pointer back */
+
+        u8  *tlvs;             /* LANE2: Each MAC address can have TLVs    */
+        u32 sizeoftlvs;        /* associated with it. sizeoftlvs tells the */
+                               /* the length of the tlvs array             */
+        struct sk_buff_head tx_wait; /* wait queue for outgoing packets    */
+};
+
+struct tlv {                   /* LANE2: Template tlv struct for accessing */
+                               /* the tlvs in the lec_arp_table->tlvs array*/
+        u32 type;
+        u8  length;
+        u8  value[255];
+};
+
+/* Status fields */
+#define ESI_UNKNOWN 0       /*
+                             * Next packet sent to this mac address
+                             * causes ARP-request to be sent 
+                             */
+#define ESI_ARP_PENDING 1   /*
+                             * There is no ATM address associated with this
+                             * 48-bit address.  The LE-ARP protocol is in
+                             * progress.
+                             */
+#define ESI_VC_PENDING 2    /*
+                             * There is a valid ATM address associated with 
+                             * this 48-bit address but there is no VC set 
+                             * up to that ATM address.  The signaling 
+                             * protocol is in process.
+                             */
+#define ESI_FLUSH_PENDING 4 /*
+                             * The LEC has been notified of the FLUSH_START
+                             * status and it is assumed that the flush 
+                             * protocol is in process.
+                             */
+#define ESI_FORWARD_DIRECT 5 /*
+                              * Either the Path Switching Delay (C22) has 
+                              * elapsed or the LEC has notified the Mapping 
+                              * that the flush protocol has completed.  In 
+                              * either case, it is safe to forward packets 
+                              * to this address via the data direct VC.
+                              */
+
+/* Flag values */
+#define LEC_REMOTE_FLAG      0x0001
+#define LEC_PERMANENT_FLAG   0x0002
+
+/* Protos */
+void lec_arp_init(struct lec_priv *priv);
+int lec_mcast_make(struct lec_priv *priv, struct atm_vcc *vcc);
+void lec_arp_destroy(struct lec_priv *priv);
+void lec_vcc_close(struct lec_priv *priv, struct atm_vcc *vcc);
+
+struct atm_vcc *lec_arp_resolve(struct lec_priv *priv,
+                                unsigned char *mac_to_addr,
+                                int is_rdesc,
+                                struct lec_arp_table **ret_entry);
+void lec_vcc_added(struct lec_priv *dev,
+                   struct atmlec_ioc *ioc_data, struct atm_vcc *vcc,
+                   void (*old_push)(struct atm_vcc *vcc, struct sk_buff *skb));
+void lec_arp_check_empties(struct lec_priv *priv,
+                           struct atm_vcc *vcc, struct sk_buff *skb);
+int lec_addr_delete(struct lec_priv *priv,
+                    unsigned char *mac_addr, unsigned long permanent);
+void lec_flush_complete(struct lec_priv *priv, unsigned long tran_id);
+void lec_arp_update(struct lec_priv *priv,
+                    unsigned char *mac_addr, unsigned char *atm_addr,
+                    unsigned long remoteflag, unsigned int targetless_le_arp);
+void lec_set_flush_tran_id(struct lec_priv *priv,
+                           unsigned char *mac_addr, unsigned long tran_id);
+
+#endif