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/*
* NetBEUI data structures
*/
#ifndef __NET_NETBEUI_H
#define __NET_NETBEUI_H
#define NB_NAME_LEN 16
/*
* Used to keep lists of netbeui sessions
*/
struct nb_ses
{
struct nb_ses *next;
struct nb_nam *name;
struct nb_link *parent; /* Owner link */
struct sock *sk;
};
/*
* A netbeui link
*/
struct nb_link
{
struct llc llc; /* Must be first */
u8 mac[6]; /* Mac address of remote */
struct device *dev; /* Device we heard him on */
struct nb_ses *sessions;/* Netbeui sessions on this LLC link */
struct wait_queue *wait;/* Wait queue for this netbios LLC */
int busy; /* Track the LLC busy state */
int state; /* Link state */
#define NETBEUI_OPEN 1 /* Up and going */
#define NETBEUI_CONNWAIT 2 /* Waiting to come up */
#define NETBEUI_DISCWAIT 3 /* Waiting to drop and recover */
#define NETBEUI_DEADWAIT 4 /* Trying to die */
};
/*
* Netbios name defence list
*/
struct nb_name
{
struct nb_name *next; /* Chain */
struct device *dev; /* Device */
char name[NB_NAME_LEN]; /* Object Name */
int state; /* Name State */
#define NB_NAME_ACQUIRE 1 /* We are trying to get a name */
#define NB_NAME_COLLIDE 2 /* Name collided - we failed */
#define NB_OURS 3 /* We own the name */
#define NB_NAME_OTHER 4 /* Name found - owned by other */
#define NB_NAME_GET 5 /* Trying to allocate a name */
#define NB_STATE 7 /* State bits */
#define NB_NAME_GROUP 8 /* Group name bit */
int ours; /* We own this name */
int users; /* Number of nb_ses's to this name */
struct timer_list timer; /* Our timer */
int timer_mode; /* Timer mode */
#define NB_TIMER_ACQUIRE 1 /* Expiry means we got our name */
#define NB_TIMER_COLLIDE 2 /* Expire a collided record */
#define NB_TIMER_DROP 3 /* Drop a learned record */
};
/*
* LLC link manager
*/
extern struct nb_link *netbeui_find_link(u8 macaddr);
extern struct nb_link *netbeui_create_link(u8 macaddr);
extern int netbeui_destroy_link(u8 macaddr);
/*
* Namespace manager
*/
extern struct nb_name *netbeui_find_name(char *name);
extern struct nb_name *netbeui_add_name(char *name, int ours);
extern struct nb_name *netbeui_lookup_name(char *name);
extern int nb_delete_name(struct nb_name *name);
/*
* NetBEUI Protocol items
*/
#define ADD_GROUP_NAME_QUERY 0x00
#define ADD_NAME_QUERY 0x01
#define NAME_IN_CONFLICT 0x02
#define STATUS_QUERY 0x03
#define TERMINATE_TRACE 0x07
#define DATAGRAM 0x08
#define DATAGRAM_BROADCAST 0x09
#define NAME_QUERY 0x0A
#define ADD_NAME_RESPONSE 0x0D
#define NAME_RECOGNIZED 0x0E
#define STATUS_RESPONSE 0x0F
#define TERMINATE_TRACE2 0x13
#define DATA_ACK 0x14
#define DATA_FIRST_MIDDLE 0x15
#define DATA_ONLY_LAST 0x16
#define SESSION_CONFIRM 0x17
#define SESSION_END 0x18
#define SESSION_INITIALIZE 0x19
#define NO_RECEIVE 0x1A
#define RECEIVE_OUTSTANDING 0x1B
#define RECEIVE_CONTINUE 0x1C
#define SESSION_ALIVE 0x1F
#define NB_TRANSMIT_COUNT 6
#define NB_TRANSMIT_TIMEOUT (HZ/2)
#define NB_DESCRIM_1 0xEF
#define NB_DESCRIM_2 0xFF
struct nb_dgram_pkt
{
__u16 length;
__u8 descrim1;
__u8 descrim2;
__u8 command;
__u8 option1;
__u16 option2;
__u16 tx_seq;
__u16 rx_seq;
__u8 dest[NB_NAME_LEN];
__u8 src[NB_NAME_LEN];
};
struct nb_sess_pkt
{
__u16 length;
__u8 descrim1;
__u8 descrim2;
__u8 command;
__u8 option1;
__u16 option2;
__u16 tx_seq;
__u16 rx_seq;
__u8 dnum;
__u8 snum;
};
#define NO_SEQ 0
#endif
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