1 | /* |
1 | /* |
2 | device.h -- generic header for device.c |
2 | device.h -- generic header for device.c |
3 | Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com> |
3 | Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
4 | |
4 | |
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5 | This file is part of GVPE. |
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6 | |
5 | This program is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify |
6 | 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 |
7 | the Free Software Foundation; either version 2 of the License, or |
9 | the Free Software Foundation; either version 2 of the License, or |
8 | (at your option) any later version. |
10 | (at your option) any later version. |
9 | |
11 | |
10 | 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, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU General Public License for more details. |
15 | GNU General Public License for more details. |
14 | |
16 | |
15 | 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 |
16 | along with this program; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
17 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
18 | */ |
20 | */ |
19 | |
21 | |
20 | #ifndef VPE_DEVICE_H__ |
22 | #ifndef GVPE_DEVICE_H__ |
21 | #define VPE_DEVICE_H__ |
23 | #define GVPE_DEVICE_H__ |
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24 | |
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25 | #include "config.h" |
22 | |
26 | |
23 | #define IFNAMESIZE 256 // be conservative |
27 | #define IFNAMESIZE 256 // be conservative |
24 | |
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25 | #include "gettext.h" |
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26 | |
28 | |
27 | #include "global.h" |
29 | #include "global.h" |
28 | #include "util.h" |
30 | #include "util.h" |
29 | |
31 | |
30 | struct net_packet { |
32 | struct net_packet { |
31 | u32 len; // actually u16, but padding... |
33 | u32 len; // actually u16, but padding... |
32 | |
34 | |
33 | u8 &operator[] (u16 offset) const; |
35 | u8 &operator[] (u16 offset) const; |
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36 | u8 *at (u16 offset) const; |
34 | |
37 | |
35 | void unshift_hdr (u16 hdrsize) |
38 | void unshift_hdr (u16 hdrsize) |
36 | { |
39 | { |
37 | memmove ((void *)&(*this)[hdrsize], (void *)&(*this)[0], len); |
40 | memmove ((void *)&(*this)[hdrsize], (void *)&(*this)[0], len); |
38 | len += hdrsize; |
41 | len += hdrsize; |
… | |
… | |
86 | u8 &net_packet::operator[] (u16 offset) const |
89 | u8 &net_packet::operator[] (u16 offset) const |
87 | { |
90 | { |
88 | return ((data_packet *)this)->data_[offset]; |
91 | return ((data_packet *)this)->data_[offset]; |
89 | } |
92 | } |
90 | |
93 | |
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94 | inline |
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95 | u8 *net_packet::at (u16 offset) const |
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96 | { |
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97 | return &((*this)[offset]); |
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98 | } |
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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]; |
95 | }; |
104 | }; |
… | |
… | |
108 | //bool open (); |
117 | //bool open (); |
109 | //void close (); |
118 | //void close (); |
110 | |
119 | |
111 | const char *interface () { return ifrname; } |
120 | const char *interface () { return ifrname; } |
112 | const char *info (); |
121 | const char *info (); |
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122 | const char *if_up (); |
113 | |
123 | |
114 | tap_packet *recv (); |
124 | tap_packet *recv (); |
115 | void send (tap_packet *pkt); |
125 | void send (tap_packet *pkt); |
116 | }; |
126 | }; |
117 | |
127 | |