iface.h

Go to the documentation of this file.

/*
** if.h for  in /home/anoman/work/lse/atomix/lseos-net
** 
** Copyright (c)2004 Arthur Kopatsy
** Login   <kopats_a@epita.fr>
** 
** Started on  Fri Jun 18 14:48:51 2004 Arthur Kopatsy
** Last update Tue Dec 21 11:51:38 2004 Arthur Kopatsy
*/

#ifndef IFACE_H_
#define IFACE_H_

struct s_pkbuf;
struct s_entry;
struct s_of;
struct s_iface;

/* 
** if_type
*/

#define IF_TYPE_ETHERNET        0
#define IF_TYPE_LOOPBACK        1

/*
** if_state 
*/

#define IF_STATE_DOWN           (0<<0)
#define IF_STATE_UP             (1<<0)
#define IF_STATE_BROADCAST      (1<<1)
#define IF_STATE_MULTICAST      (1<<2)
#define IF_STATE_PROMISC        (1<<3)

/* 
** if_ops
*/

/* Called to initialise the driver */
typedef int (*if_start_fn_t)(struct s_iface *iface, int if_minor);
/* Called to stop driver */
typedef int (*if_stop_fn_t)(struct s_iface *iface);
/* Call to send a packet to the interface */
typedef int (*if_send_fn_t)(struct s_iface *iface, struct s_pkbuf *pk);
/* Useful and used only for server driver to give to inet part transmission result */
typedef int (*if_ack_fn_t)(struct s_iface *iface, int tx_id, int tx_state);
/* Used to warn driver of if_* modification */
typedef int (*if_update_fn_t)(struct s_iface *iface);

struct s_if_ops
{
  int                   if_drv_id;
  int                   if_type;
  if_start_fn_t         if_start;
  if_stop_fn_t          if_stop;
  if_send_fn_t          if_send;
  if_ack_fn_t           if_ack;
  if_update_fn_t        if_update;
};

/* 
** if_name
*/

#define IF_NAME_SIZE            10

/*
** if_stat
*/

struct s_if_stat
{
  
};

/* 
** if_addr_list
*/
struct s_iface;

struct s_ifaddr
{
  LIST_ENTRY(s_ifaddr)  ifa_next;
  int                   ifa_type;

  struct s_iface        *ifa_if;                /* Corresponding interface */
  
  struct sockaddr       *ifa_addr;              /* Interface address */
  struct sockaddr       *ifa_broadaddr;         /* Broadcast address */
  struct sockaddr       *ifa_netmask;           /* Netmask */

  struct s_route_entry  *ifa_route;
};

/* 
** iface structure
*/

typedef struct s_iface
{
  LIST_ENTRY(s_iface)                   if_next;

  char                                  if_name[IF_NAME_SIZE];          /* Interface name */
  u_int32_t                             if_id;                          /* ID for inet */
  pid_t                                 if_pgid;
  u_int32_t                             if_state;                       /* State of interface */
  struct s_entry                        *if_dir;                        /* Inetfs directory corresponding to the interface */

  u_int32_t                             if_mtu;
  struct s_ifaddr                       *if_nl_addr;
  struct sockaddr                       *if_ll_addr;

  struct s_if_stat                      if_stat;                        /* Interface statistic. Updated by both inet and interfaces process */

  /* In Construction */
  struct s_if_ops                       *if_ops;
  void                                  *if_drv_info;
} t_iface;

LIST_HEAD(s_iface_list, s_iface);

/* PROTO iface.c */
#ifdef __INET__
/* iface.c */
struct s_iface *iface_find(u_int32_t if_id);
u_int32_t iface_find_id(void);
int iface_register(int if_type, int if_minor, pid_t if_pgid);
int iface_ll_output(struct s_pkbuf *pk, int type);
void ifstate_update(struct s_iface *iface);
void ifaddrip_update(struct s_iface *iface);
void ifaddrip_change(struct s_of *of);
void ifnetmask_change(struct s_of *of);
void ifaddrmac_change(struct s_of *of);
int iface_create_entry(struct s_entry *father, char *filename, struct s_entry **new);
#endif /* __INET__ */
#endif

---