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Comparing gvpe/src/device.h (file contents):
Revision 1.3 by pcg, Wed Apr 2 03:25:17 2003 UTC vs.
Revision 1.8 by pcg, Tue Oct 14 17:01:07 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 <net/if.h> 22#define IFNAMESIZE 256 // be conservative
23 23
24#include "gettext.h" 24#include "gettext.h"
25 25
26#include "global.h" 26#include "global.h"
27 27
28struct net_packet { 28struct net_packet {
29 u32 len; // actually u16, but padding... 29 u32 len; // actually u16, but padding...
30 30
31 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 }
32 38
33 void skip_hdr (u16 hdrsize) 39 void skip_hdr (u16 hdrsize)
34 { 40 {
41 len -= hdrsize;
35 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);
36 } 49 }
37 50
38 bool is_arp () 51 bool is_arp ()
39 { 52 {
40 return (*this)[12] == 0x08 && (*this)[13] == 0x06 // 0806 protocol 53 return (*this)[12] == 0x08 && (*this)[13] == 0x06 // 0806 protocol
… …
50struct data_packet : net_packet { 63struct data_packet : net_packet {
51 u8 data_[MAXSIZE]; 64 u8 data_[MAXSIZE];
52}; 65};
53 66
54inline 67inline
55u8 &net_packet::operator[] (u16 offset) 68u8 &net_packet::operator[] (u16 offset) const
56{ 69{
57 return ((data_packet *)this)->data_[offset]; 70 return ((data_packet *)this)->data_[offset];
58} 71}
59 72
60typedef u8 mac[6]; 73typedef u8 mac[6];
… …
63 mac dst; 76 mac dst;
64 mac src; 77 mac src;
65 u8 data[MAXSIZE - 12]; 78 u8 data[MAXSIZE - 12];
66}; 79};
67 80
68struct tap_device { 81struct tap_device_base {
69 int fd; 82 int fd;
70 83
71 // linux tuntap 84 // network interface name or identifier
72 char ifrname[IFNAMSIZ + 1]; 85 char ifrname[IFNAMESIZE + 1];
73 86
74 char *device; 87 char *device;
75 88
76 tap_device (); 89 tap_device ();
77 ~tap_device (); 90 ~tap_device ();
78 91
92 //bool open ();
93 //void close ();
94
79 const char *interface () { return ifrname; } 95 const char *interface () { return ifrname; }
80 const char *info () { return _("Linux tun/tap device"); } 96 const char *info ();
81 97
82 tap_packet *recv (); 98 tap_packet *recv ();
83 void send (tap_packet *pkt); 99 void send (tap_packet *pkt);
84}; 100};
85 101
102//extern tap_device *tap_device ();
103
86#endif 104#endif
87 105

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