194 lines
4.0 KiB
C
194 lines
4.0 KiB
C
/*
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* Copyright (C) 2012-2020 Tobias Brunner
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* Copyright (C) 2006 Martin Willi
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program 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 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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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 MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <syslog.h>
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#include "sys_logger.h"
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#include <threading/mutex.h>
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#include <threading/rwlock.h>
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typedef struct private_sys_logger_t private_sys_logger_t;
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/**
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* Private data of a sys_logger_t object
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*/
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struct private_sys_logger_t {
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/**
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* Public data.
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*/
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sys_logger_t public;
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/**
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* syslog facility to use
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*/
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int facility;
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/**
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* Maximum level to log, for each group
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*/
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level_t levels[DBG_MAX];
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/**
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* Print the name/# of the IKE_SA?
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*/
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bool ike_name;
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/**
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* Print the log level
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*/
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bool log_level;
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/**
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* Mutex to ensure multi-line log messages are not torn apart
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*/
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mutex_t *mutex;
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/**
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* Lock to read/write options (levels, ike_name)
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*/
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rwlock_t *lock;
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};
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METHOD(logger_t, log_, void,
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private_sys_logger_t *this, debug_t group, level_t level, int thread,
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ike_sa_t* ike_sa, const char *message)
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{
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char groupstr[5], namestr[128] = "";
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const char *current = message, *next;
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/* cache group name and optional name string */
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this->lock->read_lock(this->lock);
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if (this->log_level)
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{
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snprintf(groupstr, sizeof(groupstr), "%N%d", debug_names, group,
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level);
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}
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else
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{
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snprintf(groupstr, sizeof(groupstr), "%N", debug_names, group);
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}
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if (this->ike_name && ike_sa)
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{
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if (ike_sa->get_peer_cfg(ike_sa))
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{
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snprintf(namestr, sizeof(namestr), " <%s|%d>",
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ike_sa->get_name(ike_sa), ike_sa->get_unique_id(ike_sa));
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}
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else
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{
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snprintf(namestr, sizeof(namestr), " <%d>",
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ike_sa->get_unique_id(ike_sa));
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}
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}
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this->lock->unlock(this->lock);
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/* do a syslog for every line */
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this->mutex->lock(this->mutex);
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while (TRUE)
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{
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next = strchr(current, '\n');
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if (next == NULL)
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{
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syslog(this->facility | LOG_INFO, "%.2d[%s]%s %s\n",
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thread, groupstr, namestr, current);
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break;
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}
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syslog(this->facility | LOG_INFO, "%.2d[%s]%s %.*s\n",
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thread, groupstr, namestr, (int)(next - current), current);
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current = next + 1;
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}
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this->mutex->unlock(this->mutex);
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}
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METHOD(logger_t, get_level, level_t,
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private_sys_logger_t *this, debug_t group)
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{
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level_t level;
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this->lock->read_lock(this->lock);
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level = this->levels[group];
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this->lock->unlock(this->lock);
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return level;
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}
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METHOD(sys_logger_t, set_level, void,
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private_sys_logger_t *this, debug_t group, level_t level)
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{
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this->lock->write_lock(this->lock);
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if (group < DBG_ANY)
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{
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this->levels[group] = level;
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}
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else
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{
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for (group = 0; group < DBG_MAX; group++)
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{
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this->levels[group] = level;
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}
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}
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this->lock->unlock(this->lock);
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}
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METHOD(sys_logger_t, set_options, void,
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private_sys_logger_t *this, bool ike_name, bool log_level)
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{
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this->lock->write_lock(this->lock);
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this->ike_name = ike_name;
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this->log_level = log_level;
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this->lock->unlock(this->lock);
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}
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METHOD(sys_logger_t, destroy, void,
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private_sys_logger_t *this)
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{
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this->lock->destroy(this->lock);
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this->mutex->destroy(this->mutex);
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free(this);
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}
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/*
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* Described in header.
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*/
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sys_logger_t *sys_logger_create(int facility)
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{
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private_sys_logger_t *this;
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INIT(this,
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.public = {
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.logger = {
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.log = _log_,
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.get_level = _get_level,
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},
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.set_level = _set_level,
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.set_options = _set_options,
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.destroy = _destroy,
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},
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.facility = facility,
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.mutex = mutex_create(MUTEX_TYPE_DEFAULT),
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.lock = rwlock_create(RWLOCK_TYPE_DEFAULT),
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);
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set_level(this, DBG_ANY, LEVEL_SILENT);
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setlogmask(LOG_UPTO(LOG_INFO));
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return &this->public;
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}
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