| 1 | /* |
1 | /* |
| 2 | device.h -- generic header for device.c |
2 | device.h -- generic header for device.c |
| 3 | Copyright (C) 2003 Marc Lehmann <pcg@goof.com> |
3 | Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com> |
| 4 | |
4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
8 | (at your option) any later version. |
| … | |
… | |
| 23 | #define IFNAMESIZE 256 // be conservative |
23 | #define IFNAMESIZE 256 // be conservative |
| 24 | |
24 | |
| 25 | #include "gettext.h" |
25 | #include "gettext.h" |
| 26 | |
26 | |
| 27 | #include "global.h" |
27 | #include "global.h" |
|
|
28 | #include "util.h" |
| 28 | |
29 | |
| 29 | struct net_packet { |
30 | struct net_packet { |
| 30 | u32 len; // actually u16, but padding... |
31 | u32 len; // actually u16, but padding... |
| 31 | |
32 | |
| 32 | u8 &operator[] (u16 offset) const; |
33 | u8 &operator[] (u16 offset) const; |
|
|
34 | u8 *at (u16 offset) const; |
| 33 | |
35 | |
| 34 | void unshift_hdr (u16 hdrsize) |
36 | void unshift_hdr (u16 hdrsize) |
| 35 | { |
37 | { |
| 36 | memmove ((void *)&(*this)[hdrsize], (void *)&(*this)[0], len); |
38 | memmove ((void *)&(*this)[hdrsize], (void *)&(*this)[0], len); |
| 37 | len += hdrsize; |
39 | len += hdrsize; |
| … | |
… | |
| 85 | u8 &net_packet::operator[] (u16 offset) const |
87 | u8 &net_packet::operator[] (u16 offset) const |
| 86 | { |
88 | { |
| 87 | return ((data_packet *)this)->data_[offset]; |
89 | return ((data_packet *)this)->data_[offset]; |
| 88 | } |
90 | } |
| 89 | |
91 | |
| 90 | typedef u8 mac[6]; |
92 | inline |
|
|
93 | u8 *net_packet::at (u16 offset) const |
|
|
94 | { |
|
|
95 | return &((*this)[offset]); |
|
|
96 | } |
| 91 | |
97 | |
| 92 | struct tap_packet : net_packet { |
98 | struct tap_packet : net_packet { |
| 93 | mac dst; |
99 | mac dst; |
| 94 | mac src; |
100 | mac src; |
| 95 | u8 data[MAXSIZE - 12]; |
101 | u8 data[MAXSIZE - 12]; |
