| /* |
| * 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 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 |
| |
| #endif |