71 lines
1.3 KiB
C
71 lines
1.3 KiB
C
/*
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* Structures for RIP protocol
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*/
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struct rip_connection {
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node n;
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int num;
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struct proto *proto;
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ip_addr addr;
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struct rip_entry *sendptr;
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sock *send;
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};
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struct rip_packet_heading {
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u8 command;
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#define RIPCMD_REQUEST 1 /* want info */
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#define RIPCMD_RESPONSE 2 /* responding to request */
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#define RIPCMD_TRACEON 3 /* turn tracing on */
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#define RIPCMD_TRACEOFF 4 /* turn it off */
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#define RIPCMD_MAX 5
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u8 version;
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#define RIP_V1 1
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#define RIP_V2 2
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u16 unused;
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};
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struct rip_block {
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u16 family; /* 0xffff on first message means this is authentication */
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u16 tag;
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ip_addr network;
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ip_addr netmask;
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ip_addr nexthop;
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u32 metric;
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};
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struct rip_entry {
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node n;
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ip_addr whotoldme;
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ip_addr network;
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int pxlen;
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ip_addr nexthop;
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int metric;
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u16 tag;
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bird_clock_t updated, changed;
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int flags;
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#define RIP_F_EXTERNAL 1
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};
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struct rip_packet {
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struct rip_packet_heading heading;
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struct rip_block block[25];
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};
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struct rip_data {
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struct proto inherited;
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sock *listen;
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timer *timer;
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list connections;
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list rtable;
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int magic;
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};
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#define P ((struct rip_data *) p)
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#define E ((struct rip_entry *) e)
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#define RIP_MAGIC 81861253
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#define CHK_MAGIC do { if (P->magic != RIP_MAGIC) die( "Not enough magic\n" ); } while (0)
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