1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
#ifndef _IP_H_
#define _IP_H_ 1
#if defined(__cplusplus)
extern "C" {
#endif
AUTOLIB(ip)
/*
#pragma src "/sys/src/libip"
#pragma lib "libip.a"
#pragma varargck type "I" uchar*
#pragma varargck type "V" uchar*
#pragma varargck type "E" uchar*
#pragma varargck type "M" uchar*
*/
enum
{
IPaddrlen= 16,
IPv4addrlen= 4,
IPv4off= 12,
IPllen= 4,
};
/*
* for reading /net/ipifc
*/
typedef struct Ipifc Ipifc;
typedef struct Iplifc Iplifc;
typedef struct Ipv6rp Ipv6rp;
/* local address */
struct Iplifc
{
Iplifc *next;
/* per address on the ip interface */
uchar ip[IPaddrlen];
uchar mask[IPaddrlen];
uchar net[IPaddrlen]; /* ip & mask */
ulong preflt; /* preferred lifetime */
ulong validlt; /* valid lifetime */
};
/* default values, one per stack */
struct Ipv6rp
{
int mflag;
int oflag;
int maxraint;
int minraint;
int linkmtu;
int reachtime;
int rxmitra;
int ttl;
int routerlt;
};
/* actual interface */
struct Ipifc
{
Ipifc *next;
Iplifc *lifc;
/* per ip interface */
int index; /* number of interface in ipifc dir */
char dev[64];
uchar ether[6];
uchar sendra6; /* on == send router adv */
uchar recvra6; /* on == rcv router adv */
int mtu;
ulong pktin;
ulong pktout;
ulong errin;
ulong errout;
Ipv6rp rp;
};
/*
* user level udp headers
*/
enum
{
Udphdrsize= 52, /* size of a Udphdr */
};
typedef struct Udphdr Udphdr;
struct Udphdr
{
uchar raddr[IPaddrlen]; /* remote address and port */
uchar laddr[IPaddrlen]; /* local address and port */
uchar ifcaddr[IPaddrlen]; /* address of ifc message was received from */
uchar rport[2];
uchar lport[2];
};
uchar* defmask(uchar*);
void maskip(uchar*, uchar*, uchar*);
int eipfmt(Fmt*);
int isv4(uchar*);
ulong parseip(uchar*, char*);
ulong parseipmask(uchar*, char*);
char* v4parseip(uchar*, char*);
char* v4parsecidr(uchar*, uchar*, char*);
int parseether(uchar*, char*);
int myipaddr(uchar*, char*);
int myetheraddr(uchar*, char*);
int equivip(uchar*, uchar*);
long udpread(int, Udphdr*, void*, long);
long udpwrite(int, Udphdr*, void*, long);
Ipifc* readipifc(char*, Ipifc*, int);
void freeipifc(Ipifc*);
void hnputv(void*, uvlong);
void hnputl(void*, uint);
void hnputs(void*, ushort);
uint nhgetl(void*);
uvlong nhgetv(void*);
ushort nhgets(void*);
ushort ptclbsum(uchar*, int);
int v6tov4(uchar*, uchar*);
void v4tov6(uchar*, uchar*);
#define ipcmp(x, y) memcmp(x, y, IPaddrlen)
#define ipmove(x, y) memmove(x, y, IPaddrlen)
extern uchar IPv4bcast[IPaddrlen];
extern uchar IPv4bcastobs[IPaddrlen];
extern uchar IPv4allsys[IPaddrlen];
extern uchar IPv4allrouter[IPaddrlen];
extern uchar IPnoaddr[IPaddrlen];
extern uchar v4prefix[IPaddrlen];
extern uchar IPallbits[IPaddrlen];
#define CLASS(p) ((*(uchar*)(p))>>6)
#if defined(__cplusplus)
}
#endif
#endif
|