+++ /dev/null
-/*
- * uAnytun
- *
- * uAnytun is a tiny implementation of SATP. Unlike Anytun which is a full
- * featured implementation uAnytun has no support for multiple connections
- * or synchronisation. It is a small single threaded implementation intended
- * to act as a client on small platforms.
- * The secure anycast tunneling protocol (satp) defines a protocol used
- * for communication between any combination of unicast and anycast
- * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
- * mode and allows tunneling of every ETHER TYPE protocol (e.g.
- * ethernet, ip, arp ...). satp directly includes cryptography and
- * message authentication based on the methodes used by SRTP. It is
- * intended to deliver a generic, scaleable and secure solution for
- * tunneling and relaying of packets of any protocol.
- *
- *
- * Copyright (C) 2007-2008 Christian Pointner <equinox@anytun.org>
- *
- * This file is part of uAnytun.
- *
- * uAnytun is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * any later version.
- *
- * uAnytun is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with uAnytun. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "datatypes.h"
-
-#include <string.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-#define SYSLOG_NAMES
-#include <syslog.h>
-
-#include "log.h"
-
-log_t stdlog;
-
-#include "log_targets.h"
-
-const char* log_prio_to_string(log_prio_t prio)
-{
- switch(prio) {
- case ERROR: return "ERROR";
- case WARNING: return "WARNING";
- case NOTICE: return "NOTICE";
- case INFO: return "INFO";
- case DEBUG: return "DEBUG";
- }
- return "UNKNOWN";
-}
-
-log_target_type_t log_target_parse_type(const char* conf)
-{
- if(!conf)
- return TARGET_UNKNOWN;
-
- if(!strncmp(conf, "syslog", 6)) return TARGET_SYSLOG;
- if(!strncmp(conf, "file", 4)) return TARGET_FILE;
- if(!strncmp(conf, "stdout", 6)) return TARGET_STDOUT;
- if(!strncmp(conf, "stderr", 6)) return TARGET_STDERR;
-
- return TARGET_UNKNOWN;
-}
-
-int log_targets_target_exists(log_targets_t* targets, log_target_type_t type)
-{
- if(!targets && !targets->first_)
- return 0;
-
- log_target_t* tmp = targets->first_;
- while(tmp) {
- if(tmp->type_ == type)
- return 1;
- tmp = tmp->next_;
- }
- return 0;
-}
-
-int log_targets_add(log_targets_t* targets, const char* conf)
-{
- if(!targets)
- return -1;
-
- log_target_t* new_target = NULL;
- int duplicates_allowed = 0;
- switch(log_target_parse_type(conf)) {
- case TARGET_SYSLOG: new_target = log_target_syslog_new(); break;
- case TARGET_FILE: new_target = log_target_file_new(); duplicates_allowed = 1; break;
- case TARGET_STDOUT: new_target = log_target_stdout_new(); break;
- case TARGET_STDERR: new_target = log_target_stderr_new(); break;
- default: return -3;
- }
- if(!new_target)
- return -2;
-
- if(!duplicates_allowed && log_targets_target_exists(targets, new_target->type_)) {
- free(new_target);
- return -4;
- }
-
- const char* prioptr = strchr(conf, ':');
- if(!prioptr || prioptr[1] == 0) {
- free(new_target);
- return -1;
- }
- prioptr++;
- if(!isdigit(prioptr[0]) || (prioptr[1] != 0 && prioptr[1] != ',')) {
- free(new_target);
- return -1;
- }
- new_target->max_prio_ = prioptr[0] - '0';
- if(new_target->max_prio_ > 0)
- new_target->enabled_ = 1;
-
- if(new_target->init != NULL) {
- const char* confptr = NULL;
- if(prioptr[1] != 0)
- confptr = prioptr+2;
-
- int ret = (*new_target->init)(new_target, confptr);
- if(ret) {
- free(new_target);
- return ret;
- }
- }
-
- if(new_target->open != NULL)
- (*new_target->open)(new_target);
-
-
- if(!targets->first_) {
- targets->first_ = new_target;
- }
- else {
- log_target_t* tmp = targets->first_;
- while(tmp->next_)
- tmp = tmp->next_;
-
- tmp->next_ = new_target;
- }
- return 0;
-}
-
-void log_targets_log(log_targets_t* targets, log_prio_t prio, const char* msg)
-{
- if(!targets)
- return;
-
- log_target_t* tmp = targets->first_;
- while(tmp) {
- if(tmp->log != NULL && tmp->enabled_ && tmp->max_prio_ >= prio)
- (*tmp->log)(tmp, prio, msg);
-
- tmp = tmp->next_;
- }
-}
-
-void log_targets_clear(log_targets_t* targets)
-{
- if(!targets)
- return;
-
- while(targets->first_) {
- log_target_t* tmp = targets->first_;
- targets->first_ = tmp->next_;
- if(tmp->close != NULL)
- (*tmp->close)(tmp);
- if(tmp->clear != NULL)
- (*tmp->clear)(tmp);
- free(tmp);
- }
-}
-
-
-void log_init()
-{
- stdlog.max_prio_ = 0;
- stdlog.targets_.first_ = NULL;
-}
-
-void log_close()
-{
- log_targets_clear(&stdlog.targets_);
-}
-
-void update_max_prio()
-{
- log_target_t* tmp = stdlog.targets_.first_;
- while(tmp) {
- if(tmp->enabled_ && tmp->max_prio_ > stdlog.max_prio_)
- stdlog.max_prio_ = tmp->max_prio_;
-
- tmp = tmp->next_;
- }
-}
-
-int log_add_target(const char* conf)
-{
- if(!conf)
- return -1;
-
- int ret = log_targets_add(&stdlog.targets_, conf);
- if(!ret) update_max_prio();
- return ret;
-}
-
-void log_printf(log_prio_t prio, const char* fmt, ...)
-{
- if(stdlog.max_prio_ < prio)
- return;
-
- static char msg[MSG_LENGTH_MAX];
- va_list args;
-
- va_start(args, fmt);
- vsnprintf(msg, MSG_LENGTH_MAX, fmt, args);
- va_end(args);
-
- log_targets_log(&stdlog.targets_, prio, msg);
-}
-
-void log_print_hex_dump(log_prio_t prio, const u_int8_t* buf, u_int32_t len)
-{
- if(stdlog.max_prio_ < prio)
- return;
-
- static char msg[MSG_LENGTH_MAX];
-
- if(!buf) {
- snprintf(msg, MSG_LENGTH_MAX, "(NULL)");
- }
- else {
- u_int32_t i;
- int offset = snprintf(msg, MSG_LENGTH_MAX, "dump(%d): ", len);
- if(offset < 0)
- return;
- u_int8_t* ptr = &msg[offset];
-
- for(i=0; i < len; i++) {
- if(((i+1)*3) >= (MSG_LENGTH_MAX - offset))
- break;
- snprintf(ptr, 3, "%02X ", buf[i]);
- ptr+=3;
- }
- }
- log_targets_log(&stdlog.targets_, prio, msg);
-}
projects / svn42.git / blobdiff