| … | |
… | |
| 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 | |
| … | |
… | |
| 46 | { |
46 | { |
| 47 | len = pkt.len; |
47 | len = pkt.len; |
| 48 | memcpy (&((*this)[0]), &(pkt[0]), len); |
48 | memcpy (&((*this)[0]), &(pkt[0]), len); |
| 49 | } |
49 | } |
| 50 | |
50 | |
|
|
51 | bool is_ipv4 () const |
|
|
52 | { |
|
|
53 | return (*this)[12] == 0x08 && (*this)[13] == 0x00 // IP |
|
|
54 | && ((*this)[14] & 0xf0) == 0x40; // IPv4 |
|
|
55 | } |
|
|
56 | |
|
|
57 | u32 &ipv4_src () const |
|
|
58 | { |
|
|
59 | return *(u32 *)&(*this)[26]; |
|
|
60 | } |
|
|
61 | |
|
|
62 | u32 &ipv4_dst () const |
|
|
63 | { |
|
|
64 | return *(u32 *)&(*this)[30]; |
|
|
65 | } |
|
|
66 | |
| 51 | bool is_arp () |
67 | bool is_arp () const |
| 52 | { |
68 | { |
| 53 | return (*this)[12] == 0x08 && (*this)[13] == 0x06 // 0806 protocol |
69 | return (*this)[12] == 0x08 && (*this)[13] == 0x06 // 0806 protocol |
| 54 | && (*this)[14] == 0x00 && (*this)[15] == 0x01 // 0001 hw_format |
70 | && (*this)[14] == 0x00 && (*this)[15] == 0x01 // 0001 hw_format |
| 55 | && (*this)[16] == 0x08 && (*this)[17] == 0x00 // 0800 prot_format |
71 | && (*this)[16] == 0x08 && (*this)[17] == 0x00 // 0800 prot_format |
| 56 | && (*this)[18] == 0x06 && (*this)[19] == 0x04; // 06 hw_len 04 prot_len |
72 | && (*this)[18] == 0x06 && (*this)[19] == 0x04; // 06 hw_len 04 prot_len |
| … | |
… | |
| 79 | }; |
95 | }; |
| 80 | |
96 | |
| 81 | struct tap_device { |
97 | struct tap_device { |
| 82 | int fd; |
98 | int fd; |
| 83 | |
99 | |
| 84 | // linux tuntap |
100 | // network interface name or identifier |
| 85 | char ifrname[IFNAMSIZ + 1]; |
101 | char ifrname[IFNAMESIZE + 1]; |
| 86 | |
102 | |
| 87 | char *device; |
103 | char *device; |
| 88 | |
104 | |
| 89 | tap_device (); |
105 | tap_device (); |
| 90 | ~tap_device (); |
106 | ~tap_device (); |
| 91 | |
107 | |
|
|
108 | //bool open (); |
|
|
109 | //void close (); |
|
|
110 | |
| 92 | const char *interface () { return ifrname; } |
111 | const char *interface () { return ifrname; } |
| 93 | const char *info () { return _("Linux tun/tap device"); } |
112 | const char *info (); |
| 94 | |
113 | |
| 95 | tap_packet *recv (); |
114 | tap_packet *recv (); |
| 96 | void send (tap_packet *pkt); |
115 | void send (tap_packet *pkt); |
| 97 | }; |
116 | }; |
| 98 | |
117 | |
|
|
118 | //extern tap_device *tap_device (); |
|
|
119 | |
| 99 | #endif |
120 | #endif |
| 100 | |
121 | |
