mirror of
https://github.com/9fans/plan9port.git
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123 lines
2.3 KiB
C
123 lines
2.3 KiB
C
/*
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#pragma src "/sys/src/libip"
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#pragma lib "libip.a"
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#pragma varargck type "I" uchar*
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#pragma varargck type "V" uchar*
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#pragma varargck type "E" uchar*
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#pragma varargck type "M" uchar*
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*/
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enum
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{
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IPaddrlen= 16,
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IPv4addrlen= 4,
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IPv4off= 12,
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IPllen= 4,
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};
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/*
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* for reading /net/ipifc
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*/
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typedef struct Ipifc Ipifc;
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typedef struct Iplifc Iplifc;
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typedef struct Ipv6rp Ipv6rp;
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/* local address */
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struct Iplifc
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{
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Iplifc *next;
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/* per address on the ip interface */
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uchar ip[IPaddrlen];
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uchar mask[IPaddrlen];
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uchar net[IPaddrlen]; /* ip & mask */
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ulong preflt; /* preferred lifetime */
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ulong validlt; /* valid lifetime */
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};
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/* default values, one per stack */
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struct Ipv6rp
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{
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int mflag;
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int oflag;
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int maxraint;
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int minraint;
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int linkmtu;
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int reachtime;
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int rxmitra;
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int ttl;
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int routerlt;
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};
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/* actual interface */
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struct Ipifc
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{
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Ipifc *next;
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Iplifc *lifc;
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/* per ip interface */
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int index; /* number of interface in ipifc dir */
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char dev[64];
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uchar sendra6; /* on == send router adv */
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uchar recvra6; /* on == rcv router adv */
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int mtu;
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ulong pktin;
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ulong pktout;
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ulong errin;
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ulong errout;
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Ipv6rp rp;
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};
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/*
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* user level udp headers
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*/
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enum
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{
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Udphdrsize= 36, /* size of a Udphdr */
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};
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typedef struct Udphdr Udphdr;
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struct Udphdr
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{
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uchar raddr[IPaddrlen]; /* remote address and port */
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uchar laddr[IPaddrlen]; /* local address and port */
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uchar rport[2];
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uchar lport[2];
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};
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uchar* defmask(uchar*);
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void maskip(uchar*, uchar*, uchar*);
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int eipfmt(Fmt*);
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int isv4(uchar*);
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ulong parseip(uchar*, char*);
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ulong parseipmask(uchar*, char*);
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char* v4parseip(uchar*, char*);
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char* v4parsecidr(uchar*, uchar*, char*);
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int parseether(uchar*, char*);
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int myipaddr(uchar*, char*);
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int myetheraddr(uchar*, char*);
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int equivip(uchar*, uchar*);
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Ipifc* readipifc(char*, Ipifc*, int);
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void hnputl(void*, uint);
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void hnputs(void*, ushort);
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uint nhgetl(void*);
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ushort nhgets(void*);
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ushort ptclbsum(uchar*, int);
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int v6tov4(uchar*, uchar*);
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void v4tov6(uchar*, uchar*);
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#define ipcmp(x, y) memcmp(x, y, IPaddrlen)
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#define ipmove(x, y) memmove(x, y, IPaddrlen)
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extern uchar IPv4bcast[IPaddrlen];
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extern uchar IPv4bcastobs[IPaddrlen];
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extern uchar IPv4allsys[IPaddrlen];
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extern uchar IPv4allrouter[IPaddrlen];
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extern uchar IPnoaddr[IPaddrlen];
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extern uchar v4prefix[IPaddrlen];
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extern uchar IPallbits[IPaddrlen];
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#define CLASS(p) ((*(uchar*)(p))>>6)
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