-#include "rip.h"
-
-/*
- * Trace record format.
- */
-struct iftrace {
- time_t ift_stamp; /* time stamp */
- struct sockaddr ift_who; /* from/to */
- char *ift_packet; /* pointer to packet */
- short ift_size; /* size of packet */
- short ift_metric; /* metric on associated metric */
-};
-
-/*
- * Per interface packet tracing buffers. An incoming and
- * outgoing circular buffer of packets is maintained, per
- * interface, for debugging. Buffers are dumped whenever
- * an interface is marked down.
- */
-struct ifdebug {
- struct iftrace *ifd_records; /* array of trace records */
- struct iftrace *ifd_front; /* next empty trace record */
- struct interface *ifd_if; /* for locating stuff */
-};
-
-/*
- * An ``interface'' is similar to an ifnet structure,
- * except it doesn't contain q'ing info, and it also
- * handles ``logical'' interfaces (remote gateways
- * that we want to keep polling even if they go down).
- * The list of interfaces which we maintain is used
- * in supplying the gratuitous routing table updates.
- */
-struct interface {
- struct interface *int_next;
- struct sockaddr int_addr; /* address on this host */
- union {
- struct sockaddr intu_broadaddr;
- struct sockaddr intu_dstaddr;
- } int_intu;
-#define int_broadaddr int_intu.intu_broadaddr /* broadcast address */
-#define int_dstaddr int_intu.intu_dstaddr /* other end of p-to-p link */
- int int_metric; /* init's routing entry */
- int int_flags; /* see below */
- int int_net; /* network # */
- struct ifdebug int_input, int_output; /* packet tracing stuff */
- int int_ipackets; /* input packets received */
- int int_opackets; /* output packets sent */
- char *int_name; /* from kernel if structure */
- u_short int_transitions; /* times gone up-down */
-};
-
-/*
- * 0x1 to 0x10 are reused from the kernel's ifnet definitions,
- * the others agree with the RTS_ flags defined below
- */
-#define IFF_UP 0x1 /* interface is up */
-#define IFF_BROADCAST 0x2 /* broadcast address valid */
-#define IFF_DEBUG 0x4 /* turn on debugging */
-#define IFF_ROUTE 0x8 /* routing entry installed */
-#define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
-#define IFF_PASSIVE 0x20 /* can't tell if up/down */
-#define IFF_INTERFACE 0x40 /* hardware interface */
-#define IFF_REMOTE 0x80 /* interface isn't on this machine */
-
-/*
- * Routing table structure; differs a bit from kernel tables.
- *
- * Note: the union below must agree in the first 4 members
- * so the ioctl's will work.
- */
-struct rthash {
- struct rt_entry *rt_forw;
- struct rt_entry *rt_back;
-};
-
-struct rt_entry {
- struct rt_entry *rt_forw;
- struct rt_entry *rt_back;
- union {
- struct rtentry rtu_rt;
- struct {
- u_long rtu_hash;
- struct sockaddr rtu_dst;
- struct sockaddr rtu_router;
- short rtu_flags;
- short rtu_state;
- int rtu_timer;
- int rtu_metric;
- struct interface *rtu_ifp;
- } rtu_entry;
- } rt_rtu;
-};
-
-#define rt_rt rt_rtu.rtu_rt /* pass to ioctl */
-#define rt_hash rt_rtu.rtu_entry.rtu_hash /* for net or host */
-#define rt_dst rt_rtu.rtu_entry.rtu_dst /* match value */
-#define rt_router rt_rtu.rtu_entry.rtu_router /* who to forward to */
-#define rt_flags rt_rtu.rtu_entry.rtu_flags /* kernel flags */
-#define rt_timer rt_rtu.rtu_entry.rtu_timer /* for invalidation */
-#define rt_state rt_rtu.rtu_entry.rtu_state /* see below */
-#define rt_metric rt_rtu.rtu_entry.rtu_metric /* cost of route */
-#define rt_ifp rt_rtu.rtu_entry.rtu_ifp /* interface to take */
-
-#define ROUTEHASHSIZ 19
-
-/*
- * "State" of routing table entry.
- */
-#define RTS_CHANGED 0x1 /* route has been altered recently */
-#define RTS_PASSIVE 0x20 /* don't time out route */
-#define RTS_INTERFACE 0x40 /* route is for network interface */
-#define RTS_REMOTE 0x80 /* route is for ``remote'' entity */
-
-struct rthash nethash[ROUTEHASHSIZ], hosthash[ROUTEHASHSIZ];
-struct rt_entry *rtlookup(), *rtfind();
-
-/*
- * Per address family routines.
- */
-struct afswitch {
- int (*af_hash)(); /* returns keys based on address */
- int (*af_netmatch)(); /* verifies net # matching */
- int (*af_output)(); /* interprets address for sending */
- int (*af_portmatch)(); /* packet from some other router? */
- int (*af_portcheck)(); /* packet from priviledged peer? */
- int (*af_checkhost)(); /* tells if address for host or net */
- int (*af_canon)(); /* canonicalize address for compares */
-};
-
-/*
- * Structure returned by af_hash routines.
- */
-struct afhash {
- u_int afh_hosthash; /* host based hash */
- u_int afh_nethash; /* network based hash */
-};
-
-struct afswitch afswitch[AF_MAX]; /* table proper */
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