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pcg |
1.1 |
/* |
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util.h -- process management and other utility functions |
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Copyright (C) 1998-2002 Ivo Timmermans <ivo@o2w.nl> |
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2000-2002 Guus Sliepen <guus@sliepen.eu.org> |
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root |
1.31 |
2003-2013 Marc Lehmann <gvpe@schmorp.de> |
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pcg |
1.1 |
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pcg |
1.13 |
This file is part of GVPE. |
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pcg |
1.25 |
GVPE is free software; you can redistribute it and/or modify it |
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under the terms of the GNU General Public License as published by the |
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Free Software Foundation; either version 3 of the License, or (at your |
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option) any later version. |
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This program is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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Public License for more details. |
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You should have received a copy of the GNU General Public License along |
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with this program; if not, see <http://www.gnu.org/licenses/>. |
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Additional permission under GNU GPL version 3 section 7 |
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If you modify this Program, or any covered work, by linking or |
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combining it with the OpenSSL project's OpenSSL library (or a modified |
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version of that library), containing parts covered by the terms of the |
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OpenSSL or SSLeay licenses, the licensors of this Program grant you |
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additional permission to convey the resulting work. Corresponding |
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Source for a non-source form of such a combination shall include the |
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source code for the parts of OpenSSL used as well as that of the |
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covered work. |
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pcg |
1.1 |
*/ |
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#ifndef UTIL_H__ |
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#define UTIL_H__ |
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pcg |
1.24 |
#include <cstring> |
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pcg |
1.26 |
#include <sys/types.h> |
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pcg |
1.24 |
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pcg |
1.11 |
#include <openssl/rsa.h> |
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pcg |
1.15 |
#include "gettext.h" |
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pcg |
1.10 |
#include "slog.h" |
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pcg |
1.20 |
#include "ev_cpp.h" |
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#include "callback.h" |
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root |
1.31 |
#include "global.h" |
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pcg |
1.20 |
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pcg |
1.21 |
typedef ev_tstamp tstamp; |
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pcg |
1.1 |
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/* |
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pcg |
1.16 |
* check for an existing gvpe for this net, and write pid to pidfile |
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pcg |
1.1 |
*/ |
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extern int write_pidfile (void); |
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/* |
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pcg |
1.16 |
* kill older gvpe |
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pcg |
1.1 |
*/ |
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extern int kill_other (int signal); |
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/* |
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* Detach from current terminal, write pidfile, kill parent |
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*/ |
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extern int detach (int do_detach); |
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/* |
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* check wether the given path is an absolute pathname |
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*/ |
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#define ABSOLUTE_PATH(c) ((c)[0] == '/') |
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pcg |
1.10 |
|
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pcg |
1.11 |
/*****************************************************************************/ |
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pcg |
1.10 |
typedef u8 mac[6]; |
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pcg |
1.1 |
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pcg |
1.8 |
extern void id2mac (unsigned int id, void *m); |
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pcg |
1.1 |
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pcg |
1.8 |
#define mac2id(p) ((p)[0] & 0x01 ? 0 : ((p)[4] << 8) | (p)[5]) |
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pcg |
1.1 |
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pcg |
1.22 |
struct sliding_window |
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{ |
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pcg |
1.2 |
u32 v[(WINDOWSIZE + 31) / 32]; |
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u32 seq; |
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void reset (u32 seqno) |
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{ |
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memset (v, -1, sizeof v); |
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seq = seqno; |
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} |
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pcg |
1.28 |
// 0 == ok, 1 == far history, 2 == duplicate in-window, 3 == far future |
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pcg |
1.27 |
int seqno_classify (u32 seqno) |
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pcg |
1.2 |
{ |
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if (seqno <= seq - WINDOWSIZE) |
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pcg |
1.27 |
return 1; |
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else if (seqno > seq + WINDOWSIZE * 16) |
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pcg |
1.28 |
return 3; |
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pcg |
1.2 |
else |
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{ |
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while (seqno > seq) |
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{ |
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seq++; |
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u32 s = seq % WINDOWSIZE; |
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u32 *cell = v + (s >> 5); |
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u32 mask = 1 << (s & 31); |
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*cell &= ~mask; |
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} |
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u32 s = seqno % WINDOWSIZE; |
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u32 *cell = v + (s >> 5); |
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u32 mask = 1 << (s & 31); |
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if (*cell & mask) |
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pcg |
1.28 |
return 2; |
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pcg |
1.2 |
else |
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{ |
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*cell |= mask; |
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pcg |
1.27 |
return 0; |
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pcg |
1.2 |
} |
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} |
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} |
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}; |
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root |
1.29 |
typedef callback<const char *()> run_script_cb; |
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pcg |
1.5 |
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// run a shell script (or actually an external program). |
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pcg |
1.26 |
pid_t run_script (const run_script_cb &cb, bool wait); |
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pcg |
1.5 |
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root |
1.32 |
void hexdump (const char *header, void *data, int len); |
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pcg |
1.7 |
#if ENABLE_HTTP_PROXY |
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u8 *base64_encode (const u8 *data, unsigned int len); |
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#endif |
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pcg |
1.11 |
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/*****************************************************************************/ |
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root |
1.30 |
// run work_cb in another thread, call done_cb in main thread when finished |
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// only one work_cb will execute at any one time. |
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root |
1.29 |
void async (callback<void ()> work_cb, callback<void ()> done_cb); |
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pcg |
1.1 |
#endif |
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