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-rw-r--r--net/atm/lec_arpc.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/net/atm/lec_arpc.h b/net/atm/lec_arpc.h
new file mode 100644
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--- /dev/null
+++ b/net/atm/lec_arpc.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Lec arp cache
+ *
+ * Marko Kiiskila <mkiiskila@yahoo.com>
+ */
+#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 hlist_node 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 */
+
+ 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;
+ u32 sizeoftlvs; /*
+ * LANE2: Each MAC address can have TLVs
+ * associated with it. sizeoftlvs tells
+ * the length of the tlvs array
+ */
+ struct sk_buff_head tx_wait; /* wait queue for outgoing packets */
+ refcount_t usage; /* usage count */
+};
+
+/*
+ * LANE2: Template tlv struct for accessing
+ * the tlvs in the lec_arp_table->tlvs array
+ */
+struct tlv {
+ 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
+
+#endif /* _LEC_ARP_H_ */