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Comparing gvpe/src/util.h (file contents):
Revision 1.14 by pcg, Fri Mar 18 01:53:05 2005 UTC vs.
Revision 1.24 by pcg, Tue Dec 4 14:55:59 2007 UTC

… …
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details. 17 GNU General Public License for more details.
18 18
19 You should have received a copy of the GNU General Public License 19 You should have received a copy of the GNU General Public License
20 along with gvpe; if not, write to the Free Software 20 along with gvpe; if not, write to the Free Software
21 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22*/ 22*/
23 23
24#ifndef UTIL_H__ 24#ifndef UTIL_H__
25#define UTIL_H__ 25#define UTIL_H__
26 26
27#include <cstring>
28
27#include <openssl/rsa.h> 29#include <openssl/rsa.h>
28 30
31#include "gettext.h"
32
29#include "slog.h" 33#include "slog.h"
30#include "iom.h" 34#include "ev_cpp.h"
35#include "callback.h"
36
37typedef ev_tstamp tstamp;
31 38
32/* 39/*
33 * check for an existing vped for this net, and write pid to pidfile 40 * check for an existing gvpe for this net, and write pid to pidfile
34 */ 41 */
35extern int write_pidfile (void); 42extern int write_pidfile (void);
36 43
37/* 44/*
38 * kill older vped 45 * kill older gvpe
39 */ 46 */
40extern int kill_other (int signal); 47extern int kill_other (int signal);
41 48
42/* 49/*
43 * Detach from current terminal, write pidfile, kill parent 50 * Detach from current terminal, write pidfile, kill parent
… …
55 62
56extern void id2mac (unsigned int id, void *m); 63extern void id2mac (unsigned int id, void *m);
57 64
58#define mac2id(p) ((p)[0] & 0x01 ? 0 : ((p)[4] << 8) | (p)[5]) 65#define mac2id(p) ((p)[0] & 0x01 ? 0 : ((p)[4] << 8) | (p)[5])
59 66
60struct sliding_window { 67struct sliding_window
68{
61 u32 v[(WINDOWSIZE + 31) / 32]; 69 u32 v[(WINDOWSIZE + 31) / 32];
62 u32 seq; 70 u32 seq;
63 71
64 void reset (u32 seqno) 72 void reset (u32 seqno)
65 { 73 {
… …
69 77
70 bool recv_ok (u32 seqno) 78 bool recv_ok (u32 seqno)
71 { 79 {
72 if (seqno <= seq - WINDOWSIZE) 80 if (seqno <= seq - WINDOWSIZE)
73 slog (L_ERR, _("received duplicate or outdated packet (received %08lx, expected %08lx)\n" 81 slog (L_ERR, _("received duplicate or outdated packet (received %08lx, expected %08lx)\n"
74 "possible replay attack, or just massive packet reordering"), seqno, seq + 1);//D 82 "possible replay attack, or just massive packet reordering"), seqno, seq + 1);
75 else if (seqno > seq + WINDOWSIZE) 83 else if (seqno > seq + WINDOWSIZE * 4)
76 slog (L_ERR, _("received duplicate or out-of-sync packet (received %08lx, expected %08lx)\n" 84 slog (L_ERR, _("received duplicate or out-of-sync packet (received %08lx, expected %08lx)\n"
77 "possible replay attack, or just massive packet loss"), seqno, seq + 1);//D 85 "possible replay attack, or just massive packet loss"), seqno, seq + 1);
78 else 86 else
79 { 87 {
80 while (seqno > seq) 88 while (seqno > seq)
81 { 89 {
82 seq++; 90 seq++;
… …
91 u32 s = seqno % WINDOWSIZE; 99 u32 s = seqno % WINDOWSIZE;
92 u32 *cell = v + (s >> 5); 100 u32 *cell = v + (s >> 5);
93 u32 mask = 1 << (s & 31); 101 u32 mask = 1 << (s & 31);
94 102
95 if (*cell & mask) 103 if (*cell & mask)
96 {
97 slog (L_ERR, _("received duplicate packet (received %08lx, expected %08lx)\n" 104 slog (L_ERR, _("received duplicate packet (received %08lx, expected %08lx)\n"
98 "possible replay attack, or just packet duplication"), seqno, seq + 1);//D 105 "possible replay attack, or just packet duplication"), seqno, seq + 1);
99 return false;
100 }
101 else 106 else
102 { 107 {
103 *cell |= mask; 108 *cell |= mask;
104 return true; 109 return true;
105 } 110 }
106 } 111 }
112
113 return false;
107 } 114 }
108}; 115};
109 116
110typedef callback0<const char *> run_script_cb; 117typedef callback<const char * ()> run_script_cb;
111 118
112// run a shell script (or actually an external program). 119// run a shell script (or actually an external program).
113void run_script (const run_script_cb &cb, bool wait); 120bool run_script (const run_script_cb &cb, bool wait);
114 121
115#if ENABLE_HTTP_PROXY 122#if ENABLE_HTTP_PROXY
116u8 *base64_encode (const u8 *data, unsigned int len); 123u8 *base64_encode (const u8 *data, unsigned int len);
117#endif 124#endif
118 125

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