| 1 | /* |
1 | /* |
| 2 | device.h -- generic header for device.c |
2 | device.h -- generic header for device.c |
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3 | Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com> |
| 3 | |
4 | |
| 4 | 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 |
| 5 | 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 |
| 6 | the Free Software Foundation; either version 2 of the License, or |
7 | the Free Software Foundation; either version 2 of the License, or |
| 7 | (at your option) any later version. |
8 | (at your option) any later version. |
| … | |
… | |
| 22 | #define IFNAMESIZE 256 // be conservative |
23 | #define IFNAMESIZE 256 // be conservative |
| 23 | |
24 | |
| 24 | #include "gettext.h" |
25 | #include "gettext.h" |
| 25 | |
26 | |
| 26 | #include "global.h" |
27 | #include "global.h" |
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28 | #include "util.h" |
| 27 | |
29 | |
| 28 | struct net_packet { |
30 | struct net_packet { |
| 29 | u32 len; // actually u16, but padding... |
31 | u32 len; // actually u16, but padding... |
| 30 | |
32 | |
| 31 | u8 &operator[] (u16 offset) const; |
33 | u8 &operator[] (u16 offset) const; |
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34 | u8 *at (u16 offset) const; |
| 32 | |
35 | |
| 33 | void unshift_hdr (u16 hdrsize) |
36 | void unshift_hdr (u16 hdrsize) |
| 34 | { |
37 | { |
| 35 | memmove ((void *)&(*this)[hdrsize], (void *)&(*this)[0], len); |
38 | memmove ((void *)&(*this)[hdrsize], (void *)&(*this)[0], len); |
| 36 | len += hdrsize; |
39 | len += hdrsize; |
| … | |
… | |
| 84 | u8 &net_packet::operator[] (u16 offset) const |
87 | u8 &net_packet::operator[] (u16 offset) const |
| 85 | { |
88 | { |
| 86 | return ((data_packet *)this)->data_[offset]; |
89 | return ((data_packet *)this)->data_[offset]; |
| 87 | } |
90 | } |
| 88 | |
91 | |
| 89 | typedef u8 mac[6]; |
92 | inline |
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93 | u8 *net_packet::at (u16 offset) const |
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94 | { |
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95 | return &((*this)[offset]); |
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96 | } |
| 90 | |
97 | |
| 91 | struct tap_packet : net_packet { |
98 | struct tap_packet : net_packet { |
| 92 | mac dst; |
99 | mac dst; |
| 93 | mac src; |
100 | mac src; |
| 94 | u8 data[MAXSIZE - 12]; |
101 | u8 data[MAXSIZE - 12]; |
