cregit-Linux how code gets into the kernel

Release 4.11 net/atm/lec_arpc.h

Directory: net/atm
/*
 * 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
                                         * the length of the tlvs array
                                         */
	
struct sk_buff_head tx_wait;	/* wait queue for outgoing packets */
	
atomic_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_ */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)19791.20%125.00%
Chas Williams198.80%375.00%
Total216100.00%4100.00%
Directory: net/atm
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