| 1 | /* |
1 | /* |
| 2 | device.h -- generic header for device.c |
2 | device.h -- generic header for device.c |
|
|
3 | Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
| 3 | |
4 | |
|
|
5 | This file is part of GVPE. |
|
|
6 | |
| 4 | This program is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify |
| 5 | it under the terms of the GNU General Public License as published by |
8 | it under the terms of the GNU General Public License as published by |
| 6 | the Free Software Foundation; either version 2 of the License, or |
9 | the Free Software Foundation; either version 2 of the License, or |
| 7 | (at your option) any later version. |
10 | (at your option) any later version. |
| 8 | |
11 | |
| 9 | This program is distributed in the hope that it will be useful, |
12 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
15 | GNU General Public License for more details. |
| 13 | |
16 | |
| 14 | You should have received a copy of the GNU General Public License |
17 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
| 16 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 17 | */ |
20 | */ |
| 18 | |
21 | |
| 19 | #ifndef VPE_DEVICE_H__ |
22 | #ifndef VPE_DEVICE_H__ |
| 20 | #define VPE_DEVICE_H__ |
23 | #define VPE_DEVICE_H__ |
| … | |
… | |
| 22 | #define IFNAMESIZE 256 // be conservative |
25 | #define IFNAMESIZE 256 // be conservative |
| 23 | |
26 | |
| 24 | #include "gettext.h" |
27 | #include "gettext.h" |
| 25 | |
28 | |
| 26 | #include "global.h" |
29 | #include "global.h" |
|
|
30 | #include "util.h" |
| 27 | |
31 | |
| 28 | struct net_packet { |
32 | struct net_packet { |
| 29 | u32 len; // actually u16, but padding... |
33 | u32 len; // actually u16, but padding... |
| 30 | |
34 | |
| 31 | u8 &operator[] (u16 offset) const; |
35 | u8 &operator[] (u16 offset) const; |
|
|
36 | u8 *at (u16 offset) const; |
| 32 | |
37 | |
| 33 | void unshift_hdr (u16 hdrsize) |
38 | void unshift_hdr (u16 hdrsize) |
| 34 | { |
39 | { |
| 35 | memmove ((void *)&(*this)[hdrsize], (void *)&(*this)[0], len); |
40 | memmove ((void *)&(*this)[hdrsize], (void *)&(*this)[0], len); |
| 36 | len += hdrsize; |
41 | len += hdrsize; |
| … | |
… | |
| 84 | u8 &net_packet::operator[] (u16 offset) const |
89 | u8 &net_packet::operator[] (u16 offset) const |
| 85 | { |
90 | { |
| 86 | return ((data_packet *)this)->data_[offset]; |
91 | return ((data_packet *)this)->data_[offset]; |
| 87 | } |
92 | } |
| 88 | |
93 | |
| 89 | typedef u8 mac[6]; |
94 | inline |
|
|
95 | u8 *net_packet::at (u16 offset) const |
|
|
96 | { |
|
|
97 | return &((*this)[offset]); |
|
|
98 | } |
| 90 | |
99 | |
| 91 | struct tap_packet : net_packet { |
100 | struct tap_packet : net_packet { |
| 92 | mac dst; |
101 | mac dst; |
| 93 | mac src; |
102 | mac src; |
| 94 | u8 data[MAXSIZE - 12]; |
103 | u8 data[MAXSIZE - 12]; |
