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Comparing gvpe/src/global.h (file contents):
Revision 1.23 by pcg, Thu Aug 7 16:34:21 2008 UTC vs.
Revision 1.26 by root, Sat Jul 13 04:10:29 2013 UTC

1/* 1/*
2 global.h -- global variables and constants 2 global.h -- global variables and constants
3 Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> 3 Copyright (C) 2003-2013 Marc Lehmann <gvpe@schmorp.de>
4 4
5 This file is part of GVPE. 5 This file is part of GVPE.
6 6
7 GVPE is free software; you can redistribute it and/or modify 7 GVPE is free software; you can redistribute it and/or modify it
8 it under the terms of the GNU General Public License as published by 8 under the terms of the GNU General Public License as published by the
9 the Free Software Foundation; either version 2 of the License, or 9 Free Software Foundation; either version 3 of the License, or (at your
10 (at your option) any later version. 10 option) any later version.
11 11
12 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, but
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15 GNU General Public License for more details. 15 Public License for more details.
16 16
17 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 along
18 along with gvpe; if not, write to the Free Software 18 with this program; if not, see <http://www.gnu.org/licenses/>.
19 Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19
20 Additional permission under GNU GPL version 3 section 7
21
22 If you modify this Program, or any covered work, by linking or
23 combining it with the OpenSSL project's OpenSSL library (or a modified
24 version of that library), containing parts covered by the terms of the
25 OpenSSL or SSLeay licenses, the licensors of this Program grant you
26 additional permission to convey the resulting work. Corresponding
27 Source for a non-source form of such a combination shall include the
28 source code for the parts of OpenSSL used as well as that of the
29 covered work.
20*/ 30*/
21 31
22#ifndef GLOBAL_H__ 32#ifndef GLOBAL_H__
23#define GLOBAL_H__ 33#define GLOBAL_H__
24 34
… …
31 */ 41 */
32 42
33#define PROTOCOL_MAJOR 0 43#define PROTOCOL_MAJOR 0
34#define PROTOCOL_MINOR 1 44#define PROTOCOL_MINOR 1
35 45
46#define SEED_SIZE 64 // how many octets to seed rng with
47
36#define RSA_KEYBITS 1280 // must be >= 1280 and divisible by 8 48#define RSA_KEYBITS 1280 // must be >= 1280 and divisible by 8
37#define RSA_KEYLEN ((RSA_KEYBITS) >> 3) 49#define RSA_KEYLEN ((RSA_KEYBITS) >> 3)
38#define RSA_OVERHEAD (41 + 1) // well, no define for OAEP in openssl 50#define RSA_OVERHEAD (41 + 1) // well, no define for OAEP in openssl
39 51
40#define RSA_HASH EVP_ripemd160 ()// speed don't matter, boy, safety does.. I need sha256 :( 52#define RSA_HASH EVP_ripemd160 ()// speed don't matter, boy, safety does.. I need sha256 :(
… …
45#define RSA_TTL 120 // challenge bytes timeout after n seconds 57#define RSA_TTL 120 // challenge bytes timeout after n seconds
46 58
47#define CIPHER ENABLE_CIPHER () 59#define CIPHER ENABLE_CIPHER ()
48#define CIPHER_KEYLEN (EVP_CIPHER_key_length (CIPHER)) 60#define CIPHER_KEYLEN (EVP_CIPHER_key_length (CIPHER))
49#define DIGEST ENABLE_DIGEST () 61#define DIGEST ENABLE_DIGEST ()
50#define HMAC_KEYLEN (256 >> 3) // number of bits used for the HMAC key (also change CHG_HMAC_KEY) 62#define HMAC_KEYLEN (256 >> 3) // number of bits used for the HMAC key
51 63
52#define WINDOWSIZE 512 // sliding window size 64#define WINDOWSIZE 512 // sliding window size
53#define MAX_SEQNO (0xfffffff0U - WINDOWSIZE * 8) 65#define MAX_SEQNO (0xfffffff0U - WINDOWSIZE * 8)
54 66
55#define CHG_SEQNO 0 // where the seqno starts within the rsa challenge 67#define CHG_SEQNO 0 // where the seqno starts within the rsa challenge
56#define CHG_CIPHER_KEY 4 // where the key starts within the rsa challenge 68#define CHG_CIPHER_KEY (CHG_SEQNO + 4) // where the key starts within the rsa challenge
69//#define CHG_HMAC_KEY (CHG_CIPHER_KEY + CIPHER_KEYLEN) // where the key starts within the rsa challenge
57#define CHG_HMAC_KEY 86 // where the key starts within the rsa challenge (256 bits at the end!) 70#define CHG_HMAC_KEY 86 // where the key starts within the rsa challenge
71// 872 rsa bits used
58 72
59// hdr seq len hmac MAC MAC 73// hdr seq len hmac MAC MAC
60#define VPE_OVERHEAD (4 + 4 + 4 + RAND_SIZE + HMACLENGTH - 6 - 6) 74#define VPE_OVERHEAD (4 + 4 + 4 + RAND_SIZE + HMACLENGTH - 6 - 6)
61#define IP_OVERHEAD 20 // size of a (normal) ip header 75#define IP_OVERHEAD 20 // size of a (normal) ip header
62#define GRE_OVERHEAD (IP_OVERHEAD + 4) 76#define GRE_OVERHEAD (IP_OVERHEAD + 4)
… …
70#define PKTCACHESIZE 16 // the size of the memory pool for packets 84#define PKTCACHESIZE 16 // the size of the memory pool for packets
71 85
72extern char *confbase; // directory in which all config files are 86extern char *confbase; // directory in which all config files are
73extern char *thisnode; // config for current node (TODO: remove) 87extern char *thisnode; // config for current node (TODO: remove)
74 88
89template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; }
90template<typename T, typename U> static inline void min_it (T &a, U b) { a = a < (T)b ? a : (T)b; }
91template<typename T, typename U> static inline T max (T a, U b) { return a > (T)b ? a : (T)b; }
92template<typename T, typename U> static inline void max_it (T &a, U b) { a = a > (T)b ? a : (T)b; }
93
94template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; }
95
96template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; }
97
75#endif 98#endif
76 99

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