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Comparing gvpe/src/device.h (file contents):
Revision 1.2 by pcg, Fri Mar 28 04:05:10 2003 UTC vs.
Revision 1.9 by pcg, Tue Oct 14 17:06:21 2003 UTC

… …
17*/ 17*/
18 18
19#ifndef VPE_DEVICE_H__ 19#ifndef VPE_DEVICE_H__
20#define VPE_DEVICE_H__ 20#define VPE_DEVICE_H__
21 21
22#include "config.h" 22#define IFNAMESIZE 256 // be conservative
23
24#include <cstdlib>
25#include <cstring>
26
27#include <net/if.h>
28 23
29#include "gettext.h" 24#include "gettext.h"
30 25
31#include "global.h" 26#include "global.h"
32 27
33struct net_packet { 28struct net_packet {
34 u32 len; // actually u16, but padding... 29 u32 len; // actually u16, but padding...
35 30
36 u8 &operator[] (u16 offset); 31 u8 &operator[] (u16 offset) const;
32
33 void unshift_hdr (u16 hdrsize)
34 {
35 memmove ((void *)&(*this)[hdrsize], (void *)&(*this)[0], len);
36 len += hdrsize;
37 }
37 38
38 void skip_hdr (u16 hdrsize) 39 void skip_hdr (u16 hdrsize)
39 { 40 {
41 len -= hdrsize;
40 memmove ((void *)&(*this)[0], (void *)&(*this)[hdrsize], len -= hdrsize); 42 memmove ((void *)&(*this)[0], (void *)&(*this)[hdrsize], len);
43 }
44
45 void set (const net_packet &pkt)
46 {
47 len = pkt.len;
48 memcpy (&((*this)[0]), &(pkt[0]), len);
41 } 49 }
42 50
43 bool is_arp () 51 bool is_arp ()
44 { 52 {
45 return (*this)[12] == 0x08 && (*this)[13] == 0x06 // 0806 protocol 53 return (*this)[12] == 0x08 && (*this)[13] == 0x06 // 0806 protocol
… …
55struct data_packet : net_packet { 63struct data_packet : net_packet {
56 u8 data_[MAXSIZE]; 64 u8 data_[MAXSIZE];
57}; 65};
58 66
59inline 67inline
60u8 &net_packet::operator[] (u16 offset) 68u8 &net_packet::operator[] (u16 offset) const
61{ 69{
62 return ((data_packet *)this)->data_[offset]; 70 return ((data_packet *)this)->data_[offset];
63} 71}
64 72
65typedef u8 mac[6]; 73typedef u8 mac[6];
… …
71}; 79};
72 80
73struct tap_device { 81struct tap_device {
74 int fd; 82 int fd;
75 83
76 // linux tuntap 84 // network interface name or identifier
77 char ifrname[IFNAMSIZ + 1]; 85 char ifrname[IFNAMESIZE + 1];
78 86
79 char *device; 87 char *device;
80 88
81 tap_device (); 89 tap_device ();
82 ~tap_device (); 90 ~tap_device ();
83 91
92 //bool open ();
93 //void close ();
94
84 const char *interface () { return ifrname; } 95 const char *interface () { return ifrname; }
85 const char *info () { return _("Linux tun/tap device"); } 96 const char *info ();
86 97
87 tap_packet *recv (); 98 tap_packet *recv ();
88 void send (tap_packet *pkt); 99 void send (tap_packet *pkt);
89}; 100};
90 101
102//extern tap_device *tap_device ();
103
91#endif 104#endif
92 105

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