Revision 9a158361 nest/iface.h

View differences:

nest/iface.h
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struct proto;


  		




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struct ifa {				/* Interface address */


  		




  
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  node n;


  		




  
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  struct iface *iface;			/* Interface this address belongs to */


  		




  
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  ip_addr ip;				/* IP address of this host */


  		




  
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  ip_addr prefix;			/* Network prefix */


  		




  
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  unsigned pxlen;			/* Prefix length */


  		




  
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  ip_addr brd;				/* Broadcast address */


  		




  
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  ip_addr opposite;			/* Opposite end of a point-to-point link */


  		




  
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  unsigned scope;			/* Interface address scope */


  		




  
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  unsigned flags;			/* Analogous to iface->flags */


  		




  
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};


  		




  
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struct iface {


  		




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  node n;


  		




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  char name[16];


  		




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  unsigned flags;


  		




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  unsigned mtu;


  		




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  unsigned index;			/* OS-dependent interface index */


  		




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  ip_addr ip;				/* IP address of this host (0=unset) */


  		




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  ip_addr prefix;			/* Network prefix */


  		




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  unsigned pxlen;			/* Prefix length */


  		




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  ip_addr brd;				/* Broadcast address */


  		




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  ip_addr opposite;			/* Opposite end of a point-to-point link */


  		




  
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  list addrs;				/* Addresses assigned to this interface */


  		




  
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  struct ifa *addr;			/* Primary address */


  		




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  struct neighbor *neigh;		/* List of neighbors on this interface */


  		




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};


  		




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#define IF_UP 1				/* IF_LINK_UP, not IF_IGNORE and IP address known */


  		




  
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#define IF_UP 1				/* IF_LINK_UP and IP address known */


  		




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#define IF_MULTIACCESS 2


  		




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#define IF_UNNUMBERED 4


  		




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#define IF_BROADCAST 8


  		




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#define IF_MULTICAST 16


  		




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#define IF_TUNNEL 32


  		




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#define IF_ADMIN_DOWN 64


  		




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#define IF_LOOPBACK 128


  		




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#define IF_IGNORE 256


  		




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#define IF_LINK_UP 512


  		




  
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#define IF_MULTICAST 0x10


  		




  
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#define IF_TUNNEL 0x20


  		




  
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#define IF_ADMIN_DOWN 0x40


  		




  
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#define IF_LOOPBACK 0x80


  		




  
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#define IF_IGNORE 0x100			/* Not to be used by routing protocols (loopbacks etc.) */


  		




  
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#define IF_LINK_UP 0x200


  		




  
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#define IA_PRIMARY 0x10000		/* This address is primary */


  		




  
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#define IA_SECONDARY 0x20000		/* This address has been reported as secondary by the kernel */


  		




  
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#define IA_FLAGS 0xff0000


  		




  
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#define IF_JUST_CREATED 0x10000000	/* Send creation event as soon as possible */


  		




  
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#define IF_TMP_DOWN 0x20000000		/* Temporary shutdown due to interface reconfiguration */


  		




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#define IF_UPDATED 0x40000000		/* Touched in last scan */


  		




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/* Interface change events */


  		




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#define IF_CHANGE_UP 1


  		




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#define IF_CHANGE_DOWN 2


  		




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#define IF_CHANGE_FLAGS 4		/* Can be converted to down/up internally */


  		




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#define IF_CHANGE_MTU 8


  		




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#define IF_CHANGE_CREATE 16		/* Seen this interface for the first time */


  		




  
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#define IF_CHANGE_MTU 4


  		




  
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#define IF_CHANGE_CREATE 8		/* Seen this interface for the first time */


  		




  
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#define IF_CHANGE_TOO_MUCH 0x40000000	/* Used internally */


  		




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void if_init(void);


  		




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void if_dump(struct iface *);


  		




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void if_dump_all(void);


  		




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void if_update(struct iface *);


  		




  
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void ifa_dump(struct ifa *);


  		




  
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struct iface *if_update(struct iface *);


  		




  
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struct ifa *ifa_update(struct ifa *);


  		




  
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void ifa_delete(struct ifa *);


  		




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void if_start_update(void);


  		




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void if_end_update(void);


  		




  
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void if_end_partial_update(struct iface *);


  		




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void if_feed_baby(struct proto *);


  		




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struct iface *if_find_by_index(unsigned);


  		




  
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struct iface *if_find_by_name(char *);


  		




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/*


  		




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 *	Neighbor Cache. We hold (direct neighbor, protocol) pairs we've seen


  		












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